fep heat shrink tubing

ETFE Customized Heat Shrink Tubing OEM Manufacturer

Best heat shrink tubing Product Description：

Our high shrinkage FEP and ETFE are usually used as a release layer in the aviation composite industry. The shrinkable fluoropolymer heat shrink tubing waterproof is a perfect solution as a gas-filled sealing ring of carbon fiber or glass fiber. FEP shrink tube has excellent high temperature resistance and can withstand curing temperatures up to 256°C.

Due to the chemical composition of ETFE, it is also an excellent dielectric barrier and chemical barrier. The shrinkage characteristics of the film make it fit closely with the original structure, which is easy to use and maintain. Heat shrink tubes makes it an excellent solution for battery applications and cooling channels in electronic components.

Best heat shrink tubing Product Specification：

Place of Origin: China

Brand Name: YOZONE heat shrink tubing suppliers

Material brand: Daikin chemical, DuPont. Dongyue & Chenguang (Domestic)

Length: Customized

Shape: Round

Color: White, customized.

Working temperature: -200°C - +150°C

Tolerance: ±0.05 mm

Chemical Resistance: stable in most medium.

Electrical Property: Insulation Resistant

Certification: UL, CE, FDA, RoHS, REACH.

Standard: ISO9001:2008.

Test: SGS passed

Sample: Free

Payment: T/T

Service Life: Depends on environment, please kindly consult our engineers.

Application: Petroleum transportation, food procession, electrical and etc.

Best heat shrink tubing Supply Ability:

100000 Meter/Meters per Month ETFE Heat Shrink Tube

Best heat shrink tubing Lead Time:

Quantity(Kilograms) 1 - 10 11 - 50 51 - 100 >100

Est. Time(days) 3 5 7 To be negotiated

Best heat shrink tubing Packaging & Delivery

ETFE Heat Shrink Tube into Carton and Wooden Pallet

Port: Tianjin, Shanghai, Shenzhen, Qingdao.

detail

Quantity(Kilograms)	1 - 10	11 - 50	51 - 100	>100
Est. Time(days)	3	5	7	To be negotiated

FEP Peelable Heat Shrink Medical Grade Tube with Bio-Compatibility Certification

**Medical heat shrink tubing Performance and usage:**

Polyper fluoroethylene propylene FEP medical peelable heat shrink tubing has excellent electrical insulation properties and high temperature resistance, and is used in

Components that need to be exposed to high temperature environments and have high insulation requirements during the process. Has excellent resistance to liquids and

Corrosive, physiologically inert, can be in direct contact with human skin, mainly used in surgical medical instruments and medical components and equipment.

**Medical heat shrink tubing** **Features:**

Shrink ratio: 1.3:1

Working temperature: -55℃~200℃

Initial shrinkage temperature: ≥150℃

good transparency

Excellent electrical insulation properties and physiological inertness

Meets ethylene oxide (ETO), gamma sterilization

Heat shrink tubing manufacturers Compliant with ISO 10993-1

Custom heat shrink tubing Environmental standards: no heavy metals, ROHS compliant

Standard color: transparent

**Medical heat shrink tubing** **Specification**

No.

Size

ID before shrinking(mm)

ID after shrinking(mm)

Wall after shrinking(mm)

1

XMC-FEP φ1.2mm

>1.20

<0.70

0.20±0.05

2

XMC-FEP φ2.5mm

>2.50

<1.80

0.20±0.05

3

XMC-FEP φ2.8mm

>2.80

<2.10

0.25±0.05

4

XMC-FEP φ3.1mm

>3.10

<2.20

0.25±0.05

5

XMC-FEP φ4.7mm

>4.70

<2.90

0.25±0.05

**Medical heat shrink tubing** **Technical indicators**

Item

Test method

Typical data

Tensile strength(Mpa)

ASTM D 638

≥13.8Mpa

Elongation at break

ASTM D 638

≥300%

Axial shrinkage change rate

ASTM D 2671

±10%

Dielectric strength (kV/mm)

ASTM D 2671

≥19.70

Insulation withstand voltage

ASTM D 149

4000V, no breakdown in 60s

Volume resistivity

UL 224

≥101*Ω.cm

Low temperature flexibility

AMS-DTL-23053

65℃/4 hours, no cracks

Copper corrosion

AMS-DTL-23053

No dents or blackening

clarity stability

AMS-DTL-23053

pass

Flame retardancy

ASTM D 2671C法

Self-extinguishing within 15s

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FEP 100 Virgin HeatShrink Tubec — FEP Insulation Anti-Uv 1.6:1 1.3:1 Heat Shrink Diameter 1-150mm Tubing Sleeves

Product Overview

Yozonetech FEP Heat Shrink Tube is a transparent fluoropolymer heat-shrink tubing designed for applications requiring a combination of chemical resistance, electrical insulation, thermal performance and visual inspection.

Manufactured from FEP (Fluorinated Ethylene Propylene), the tubing is supplied in an expanded form and shrinks when heated to form a close-fitting protective layer around wires, connectors, sensors, terminals, medical or laboratory components and other assemblies.

Compared with opaque or conventional heat-shrink materials, FEP heat shrink tubing offers an important advantage: transparency. The transparent construction allows users to visually inspect covered components, markings, connections or internal assemblies without removing the protective tubing.

FEP also provides excellent resistance to many chemicals and solvents, low surface energy, good electrical insulation and strong thermal stability.

Yozonetech supplies FEP Heat Shrink Tube in standard and custom dimensions for industrial, electrical, chemical processing, laboratory and OEM applications.

Key Features

Transparent for Visual Inspection

The transparent FEP construction allows the covered component, wire, marking or connection to remain visible after installation.

Wire identification; Connector inspection; Sensor assemblies; Laboratory equipment; Fluid-related components; Electronic assemblies.

Excellent Chemical Resistance

FEP provides excellent resistance to many acids, alkalis, solvents and fuels. Final chemical compatibility should always be evaluated according to the specific chemical, concentration, temperature and exposure time.

Heat-Shrink Conformal Fit

When heated under appropriate conditions, the expanded tubing recovers around the component and creates a close-fitting protective layer.

Irregular components; Electrical connections; Wire assemblies; Sensors; Small-diameter parts; Protective encapsulation.

Excellent Electrical Insulation

FEP provides good dielectric properties and can be used as an insulating material for electrical and electronic assemblies.

Wire insulation; Terminal protection; Connector protection; Sensor leads; Electronic components.

High Temperature Performance

FEP offers significantly higher thermal performance than many conventional heat-shrink materials. It is important to distinguish between shrink/recovery temperature and continuous operating temperature; both should be selected according to the exact product construction and datasheet.

Smooth, Low-Friction Surface

The smooth fluoropolymer surface provides low surface energy and can help reduce friction during installation. It also provides resistance to contamination and adhesion in many industrial applications.

Why Choose FEP Heat Shrink Tubing

FEP Heat Shrink Tube is particularly suitable when a standard heat-shrink tube does not provide sufficient chemical or temperature performance, but complete visual coverage of the component is still required.

Choose FEP Heat Shrink Tube when you need:

Transparency; Heat-shrink protection; Chemical resistance; Electrical insulation; High-temperature capability.

This combination makes FEP different from both standard polyolefin heat shrink tubing and opaque PTFE heat shrink tubing.

Product Construction

FEP Heat Shrink Tube is manufactured from fluorinated ethylene propylene and processed into an expanded shrinkable structure.

Basic Construction: FEP fluoropolymer → Tube forming → Expansion process → Heat shrink tubing

During installation: Expanded Tube → Heat Application → Controlled Recovery → Close-Fitting Protective Layer

The final recovered dimensions depend on original tube dimensions, expansion ratio, recovered diameter, wall thickness, heating conditions and component geometry.

Technical Specifications

The following FEP reference parameters are drawn from the FEP column of the supplied catalog. Expanded ID, recovered ID, recovered wall thickness and shrink ratio should be considered together. Confirm the specification for the exact construction supplied.

**Parameter** **FEP reference specification**

Material FEP / fluorinated ethylene propylene

Construction Expanded, heat-activated shrinkable tubing

Appearance Transparent

Catalog stable operating range −200°C to +200°C

Additional catalog temperature entry −200°C to +200°C, printed under “Heat shrink temperature range”

Catalog shrink ratios 1.3:1 and 1.7:1

Chemical properties High chemical stability; compatibility depends on actual exposure

Electrical properties Strong electrical insulating performance; confirm assembly requirements

Physical properties Flexibility and resistance to brittleness at low temperature

Biocompatibility description Listed in the catalog; application-specific qualification required

Current tooling maximum ID 265 mm

Maximum producible ID 310 mm

Customization Expanded ID, recovered ID, wall thickness, length and tolerances

The catalog’s “Heat shrink temperature range” label is reproduced for traceability. The negative lower limit and the identical operating-range entry do not establish a recovery heating procedure. Obtain the installation temperature and recovery time for the selected construction before use.

The catalog’s general biocompatibility description is not a finished-product medical qualification. Suitability and supporting documentation must be confirmed for each medical or life-science application.

Technical Specifications

Physical & Chemical Properties of Fluororplastics

SPECIFIC GRAVITY

TECHNICAL NOTE for FLIUOROPOLYMER

Large Diameter Production Capability

**Our existing tooling supports heat shrink tubing with a maximum inner diameter of 265 mm. We can manufacture heat shrink tubing with an inner diameter up to 310 mm.**

For large diameter orders, specify whether your requested ID is the expanded or fully recovered diameter, together with wall thickness, length, shrink ratio and tolerance. The recovered specification and production arrangement will be confirmed with the quotation.

Complete FEP Heat Shrink Specification Table

All diameter and wall dimensions are in mm. Expanded ID is the minimum inner diameter before shrinkage; recovered ID is the maximum inner diameter after shrinkage. The listed wall thickness is measured after recovery.

**Expanded ID mm** **Recovered ID mm** **Recovered wall mm** **Standard length m**

≥3.8 ≤2.7 0.2 ± 0.03 1

≥4.5 ≤3.3 0.2 ± 0.03 1

≥5.5 ≤4.3 0.2 ± 0.03 1

≥7.0 ≤5.1 0.2 ± 0.03 1

≥7.9 ≤6.0 0.2 ± 0.03 1

≥10.6 ≤7.4 0.3 ± 0.03 1

≥12.5 ≤8.8 0.3 ± 0.05 1

≥14.5 ≤10.7 0.3 ± 0.05 1

≥19 ≤12.8 0.4 ± 0.05 1

≥21 ≤16.5 0.5 ± 0.05 1

≥24 ≤18.5 0.5 ± 0.05 1

≥26 ≤19.5 0.5 ± 0.05 1

≥30 ≤21.5 0.5 ± 0.05 1

≥82 ≤24 0.5 ± 0.05 1

≥91 ≤64 0.5 ± 0.05 1

≥106 ≤82 0.6 ± 0.05 1

≥118 ≤96 0.6 ± 0.05 1

≥136 ≤103 0.6 ± 0.05 1

≥156 ≤125 0.6 ± 0.05 1

The ≥82 mm expanded ID / ≤24 mm recovered ID row is reproduced exactly as printed. Its diameter relationship differs markedly from adjacent rows; confirm the intended specification before selection or ordering. A shrink ratio is not assigned to individual rows in this table.

Standard packaging in the source table is 1 m. Stock availability, custom lengths and manufacturing lead time are confirmed at quotation. Maximum diameter capability for Yozonetech is 265 mm with existing tooling and 310 mm for production.

Additional Catalog Size Examples

The following recovered ID × wall thickness examples are listed jointly for FEP/PFA in the supplied catalog. They are separate references from the preceding FEP specification table and should be confirmed for the requested FEP construction.

**Recovered ID mm** **Wall thickness mm**

1.6 0.15

3.6 0.1

8 0.3

16 0.25

30 0.35

130 0.5

180 0.55

200 0.6

Other dimensions may be requested. Use the Yozonetech diameter capability stated above when planning custom orders.

Additional Application References

The source catalog also lists aerospace, electronics, chemicals and automotive manufacturing, together with insulating sheaths, water treatment, communications equipment, motor rotor and stator insulation, office machinery, paper machinery, printing machinery and roller coverings. Select the FEP construction against the actual thermal, electrical, chemical and mechanical requirements.

Shrink Ratio and Product Selection

The correct FEP heat shrink size depends on both the installation diameter and the final required diameter.

Basic selection principle:

Expanded ID > Maximum component diameter; Recovered ID ≤ Required finished diameter.

For components with connectors, terminals or irregular shapes, the maximum outside dimension must be considered.

For custom projects, customers can provide: Maximum Installation OD; Finished Required OD; Required Wall Thickness; Component Drawing or Sample.

Yozonetech can then evaluate the appropriate FEP heat shrink construction.

Transparency: A Key Advantage of FEP

Transparency is one of the major reasons for selecting FEP Heat Shrink Tube. After installation, users may still be able to inspect internal wire colors, cable identification, connector conditions, sensor components, printed markings and internal assembly structures.

This is particularly useful for applications where complete encapsulation is required, but visual inspection or identification must remain possible.

Electrical Insulation

FEP Heat Shrink Tube can provide electrical insulation and mechanical protection for a variety of electrical assemblies.

Wire insulation; Terminal covering; Connector protection; Sensor lead protection; Electronic component insulation; High-temperature wiring assemblies.

For electrical applications, consider voltage, required dielectric performance, wall thickness, operating temperature and environment. For high-voltage or safety-critical applications, the electrical properties should be confirmed for the exact product construction.

Chemical Resistance and Environmental Protection

FEP provides excellent resistance to a broad range of chemicals. After shrinking, the tubing can provide a close-fitting protective layer around sensitive components.

Chemical processing equipment; Laboratory instruments; Sensors; Analytical equipment; Fluid-handling components; Corrosive environments.

Chemical compatibility depends on chemical type, concentration, temperature, exposure duration, pressure and mechanical stress. For critical applications, chemical compatibility should be evaluated using actual operating conditions.

Temperature Performance

FEP Heat Shrink Tube can be used in applications requiring greater thermal performance than conventional heat-shrink materials.

Recovery Temperature

The temperature required for the tubing to shrink.

Continuous Operating Temperature

The temperature range in which the finished tubing assembly can operate continuously.

Short-Term Temperature Exposure

Temporary thermal exposure that may differ from the continuous operating limit.

The final product specification should define these values according to the exact FEP material and construction.

FEP Heat Shrink Tube vs PTFE Heat Shrink Tube

**Feature** **FEP Heat Shrink Tube** **PTFE Heat Shrink Tube**

Transparency Excellent Usually opaque / translucent

Heat shrinkability Excellent Excellent

Chemical resistance Excellent Excellent

Electrical insulation Excellent Excellent

Surface Smooth Smooth

Visual inspection Major advantage Limited

Temperature capability Excellent Higher potential in demanding applications

Typical use Transparent protection and insulation Severe temperature and chemical environments

Choose FEP Heat Shrink Tube when transparency and visual inspection are important. Choose PTFE Heat Shrink Tube when the application prioritizes more demanding high-temperature performance and PTFE-specific material properties.

FEP Heat Shrink Tube vs Standard FEP Tube

**Feature** **Standard FEP Tube** **FEP Heat Shrink Tube**

Basic form Extruded tube Expanded shrinkable tube

Diameter change after heating No Yes

Transparency Excellent Excellent

Fluid transfer Major application Limited / application-specific

Component protection General Close-fitting

Electrical insulation Excellent Excellent

Installation Push / route / assemble Heat recovery

Main selection ID / OD / wall Expanded ID / recovered ID / wall

Choose Standard FEP Tube for fluid transfer, chemical tubing, transparent process lines, general insulation and continuous tubing.

Choose FEP Heat Shrink Tube for heat-shrink installation, close-fitting protection, transparent component coverage, electrical insulation and chemical-resistant encapsulation.

FEP Heat Shrink Tube vs Other Heat Shrink Materials

**Material** **Main Advantage** **Typical Application**

FEP Transparency + chemical resistance Visual inspection and chemical protection

PTFE High temperature + chemical resistance Severe industrial environments

Polyolefin Cost-effective General electrical insulation

PVDF Mechanical and chemical performance Industrial protection

Silicone Flexibility Flexible electrical protection

FEP is particularly attractive when the application requires a combination of Transparency + Chemical Resistance + Electrical Insulation + Heat Shrinkability.

**Certifications**

FEP FDA certificate

FEP REACH certificate

FEP ROHS certificate

FEP Heat Shrink Tubing Certification

Yozonetech FEP FDA certificate

Yozonetech FEP ROHS certificate

Yozonetech FEP REACH certificate

Yozonetech FEP MSDS

Yozonetech FEP technical data sheet

Typical Applications

Electrical and Electronics

Wire insulation; Connector protection; Terminal covering; Sensor protection; Cable assemblies; Electronic components.

Chemical Processing

Instrument protection; Sensor sleeves; Chemical-resistant component protection; Corrosion-sensitive assemblies.

Laboratory and Analytical Equipment

Transparent component protection; Sensor assemblies; Wire insulation; Analytical instruments; Laboratory equipment.

Medical and Life Science Equipment

Medical equipment components; Transparent protective sleeves; Sensor assemblies; Instrument protection.

Semiconductor and Electronics Manufacturing

Sensor protection; Electrical insulation; Transparent fluoropolymer protection; Chemical-environment components.

Industrial Equipment

Cable protection; Electrical component insulation; Protective sleeves; Transparent identification covers; High-performance equipment assemblies.

For medical/life-science applications, material and regulatory suitability must be confirmed for the specific application.

For semiconductor applications, material cleanliness and particle-control requirements should be evaluated according to the actual process.

Manufacturing and Quality Control

The manufacturing consistency of FEP Heat Shrink Tube directly affects its dimensions, transparency and shrink performance.

Material Selection

FEP material is selected according to the required product grade and application.

Tube Manufacturing

The base tubing is produced with controlled dimensions and surface quality.

Expansion Process

Controlled expansion creates the heat-shrink structure.

Dimensional Inspection

Expanded ID; Recovered ID; Wall thickness; Length.

Shrink Performance Testing

Recovery behavior; Dimensional stability; Surface appearance; Transparency; Uniform shrink performance.

Visual Inspection

Surface defects; Contamination; Bubbles; Foreign particles; Dimensional abnormalities.

Packaging

Straight lengths; Coiled lengths; Custom-cut pieces.

Packaging requirements can be customized for OEM projects.

Custom FEP Heat Shrink Tube

**Our existing tooling supports heat shrink tubing with a maximum inner diameter of 265 mm. We can manufacture heat shrink tubing with an inner diameter up to 310 mm.**

Yozonetech supports custom FEP Heat Shrink Tube solutions.

Expanded inside diameter; Recovered inside diameter; Wall thickness; Shrink ratio; Length; Cut pieces; Continuous supply; Special dimensional tolerances; Application-specific requirements; OEM labeling; Custom packaging.

For a Fast Quotation

Please provide: Expanded ID × Recovered ID × Wall Thickness × Length × Quantity

If possible, also provide:

Component maximum OD; Required finished diameter; Operating temperature; Installation method; Electrical requirements; Chemical exposure; Application; Drawing; Sample.

Why Choose Yozonetech

Fluoropolymer Manufacturing Experience

Yozonetech focuses on fluoropolymer tubing and engineering plastic products for industrial and OEM applications.

Application-Based Product Selection

We help customers evaluate products according to dimensions, temperature, pressure, chemical exposure, electrical requirements and installation conditions.

Custom Manufacturing

Custom dimensions and OEM production are available for application-specific requirements.

Quality and Documentation

Applicable technical and compliance documentation can be provided according to the selected material grade and product requirements.

Complete Fluoropolymer Product Range

PTFE Tube; FEP Tube; PFA Tube; ETFE Tube; PTFE Braided Hose; PTFE Heat Shrink Tube; FEP Heat Shrink Tube; Fluoropolymer rods and sheets; Engineering plastic components.

Certifications and Compliance

FDA-related documentation for applicable grades; RoHS; REACH; ISO 9001; IATF 16949; Customer-specific documentation.

Compliance should always be confirmed for the exact material grade and finished product.

FAQ

What is FEP Heat Shrink Tube

FEP Heat Shrink Tube is an expanded fluoropolymer tubing that contracts when heated, forming a close-fitting protective or insulating layer around a component.

What is the main advantage of FEP Heat Shrink Tube

One of its key advantages is transparency, allowing the covered component to remain visible after installation.

What is FEP Heat Shrink Tube used for

It can be used for electrical insulation, wire protection, connector protection, sensor assemblies, chemical-resistant component protection and transparent protective covering.

Is FEP Heat Shrink Tube transparent

Yes. Transparency is one of the major advantages of FEP heat shrink tubing.

Is FEP Heat Shrink Tube chemically resistant

FEP provides excellent resistance to many chemicals and solvents. Final compatibility should be evaluated according to the specific operating conditions.

How do I choose the correct size

The expanded diameter must be large enough to pass over the component before installation, while the recovered diameter should provide the required finished fit.

What is the difference between FEP Tube and FEP Heat Shrink Tube

Standard FEP tubing maintains its original dimensions. FEP heat shrink tubing is expanded during manufacturing and contracts when heated.

Can FEP Heat Shrink Tube be customized

Yes. Custom expanded ID, recovered ID, wall thickness, length and other specifications can be evaluated. Our existing tooling supports heat shrink tubing with a maximum inner diameter of 265 mm. We can manufacture heat shrink tubing with an inner diameter up to 310 mm.

Can it be used for electrical insulation

Yes. FEP provides good electrical insulation properties and is suitable for many electrical and electronic applications.

What information is required for quotation

Expanded ID, recovered ID, wall thickness, length, quantity, component dimensions, application, operating temperature and any special requirements.

Request a Quote

Looking for Custom FEP Heat Shrink Tubing?

Send us your dimensions and application requirements.

Yozonetech can help evaluate FEP heat shrink solutions for:

Electrical Insulation; Transparent Protection; Chemical Resistance; Component Encapsulation; OEM Applications.

Email: ptfetube@yozonetech.cn

Website: chinaptfetube.com

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FEP Insulation Anti-Uv 1.6:1 1.3:1 Heat Shrink Diameter 1-150mm Tubing Sleeves

Product Overview

Yozonetech FEP Heat Shrink Tube is a transparent fluoropolymer heat-shrink tubing designed for applications requiring a combination of chemical resistance, electrical insulation, thermal performance and visual inspection.

Manufactured from FEP (Fluorinated Ethylene Propylene), the tubing is supplied in an expanded form and shrinks when heated to form a close-fitting protective layer around wires, connectors, sensors, terminals, medical or laboratory components and other assemblies.

Compared with opaque or conventional heat-shrink materials, FEP heat shrink tubing offers an important advantage: transparency. The transparent construction allows users to visually inspect covered components, markings, connections or internal assemblies without removing the protective tubing.

FEP also provides excellent resistance to many chemicals and solvents, low surface energy, good electrical insulation and strong thermal stability.

Yozonetech supplies FEP Heat Shrink Tube in standard and custom dimensions for industrial, electrical, chemical processing, laboratory and OEM applications.

Key Features

Transparent for Visual Inspection

The transparent FEP construction allows the covered component, wire, marking or connection to remain visible after installation.

Wire identification; Connector inspection; Sensor assemblies; Laboratory equipment; Fluid-related components; Electronic assemblies.

Excellent Chemical Resistance

FEP provides excellent resistance to many acids, alkalis, solvents and fuels. Final chemical compatibility should always be evaluated according to the specific chemical, concentration, temperature and exposure time.

Heat-Shrink Conformal Fit

When heated under appropriate conditions, the expanded tubing recovers around the component and creates a close-fitting protective layer.

Irregular components; Electrical connections; Wire assemblies; Sensors; Small-diameter parts; Protective encapsulation.

Excellent Electrical Insulation

FEP provides good dielectric properties and can be used as an insulating material for electrical and electronic assemblies.

Wire insulation; Terminal protection; Connector protection; Sensor leads; Electronic components.

High Temperature Performance

FEP offers significantly higher thermal performance than many conventional heat-shrink materials. It is important to distinguish between shrink/recovery temperature and continuous operating temperature; both should be selected according to the exact product construction and datasheet.

Smooth, Low-Friction Surface

The smooth fluoropolymer surface provides low surface energy and can help reduce friction during installation. It also provides resistance to contamination and adhesion in many industrial applications.

Why Choose FEP Heat Shrink Tubing

FEP Heat Shrink Tube is particularly suitable when a standard heat-shrink tube does not provide sufficient chemical or temperature performance, but complete visual coverage of the component is still required.

Choose FEP Heat Shrink Tube when you need:

Transparency; Heat-shrink protection; Chemical resistance; Electrical insulation; High-temperature capability.

This combination makes FEP different from both standard polyolefin heat shrink tubing and opaque PTFE heat shrink tubing.

Product Construction

FEP Heat Shrink Tube is manufactured from fluorinated ethylene propylene and processed into an expanded shrinkable structure.

Basic Construction: FEP fluoropolymer → Tube forming → Expansion process → Heat shrink tubing

During installation: Expanded Tube → Heat Application → Controlled Recovery → Close-Fitting Protective Layer

The final recovered dimensions depend on original tube dimensions, expansion ratio, recovered diameter, wall thickness, heating conditions and component geometry.

Technical Specifications

The following FEP reference parameters are drawn from the FEP column of the supplied catalog. Expanded ID, recovered ID, recovered wall thickness and shrink ratio should be considered together. Confirm the specification for the exact construction supplied.

**Parameter** **FEP reference specification**

Material FEP / fluorinated ethylene propylene

Construction Expanded, heat-activated shrinkable tubing

Appearance Transparent

Catalog stable operating range −200°C to +200°C

Additional catalog temperature entry −200°C to +200°C, printed under “Heat shrink temperature range”

Catalog shrink ratios 1.3:1 and 1.7:1

Chemical properties High chemical stability; compatibility depends on actual exposure

Electrical properties Strong electrical insulating performance; confirm assembly requirements

Physical properties Flexibility and resistance to brittleness at low temperature

Biocompatibility description Listed in the catalog; application-specific qualification required

Current tooling maximum ID 265 mm

Maximum producible ID 310 mm

Customization Expanded ID, recovered ID, wall thickness, length and tolerances

The catalog’s “Heat shrink temperature range” label is reproduced for traceability. The negative lower limit and the identical operating-range entry do not establish a recovery heating procedure. Obtain the installation temperature and recovery time for the selected construction before use.

The catalog’s general biocompatibility description is not a finished-product medical qualification. Suitability and supporting documentation must be confirmed for each medical or life-science application.

Technical Specifications

Physical & Chemical Properties of Fluororplastics

SPECIFIC GRAVITY

TECHNICAL NOTE for FLIUOROPOLYMER

Large Diameter Production Capability

**Our existing tooling supports heat shrink tubing with a maximum inner diameter of 265 mm. We can manufacture heat shrink tubing with an inner diameter up to 310 mm.**

For large diameter orders, specify whether your requested ID is the expanded or fully recovered diameter, together with wall thickness, length, shrink ratio and tolerance. The recovered specification and production arrangement will be confirmed with the quotation.

Complete FEP Heat Shrink Specification Table

All diameter and wall dimensions are in mm. Expanded ID is the minimum inner diameter before shrinkage; recovered ID is the maximum inner diameter after shrinkage. The listed wall thickness is measured after recovery.

**Expanded ID mm** **Recovered ID mm** **Recovered wall mm** **Standard length m**

≥3.8 ≤2.7 0.2 ± 0.03 1

≥4.5 ≤3.3 0.2 ± 0.03 1

≥5.5 ≤4.3 0.2 ± 0.03 1

≥7.0 ≤5.1 0.2 ± 0.03 1

≥7.9 ≤6.0 0.2 ± 0.03 1

≥10.6 ≤7.4 0.3 ± 0.03 1

≥12.5 ≤8.8 0.3 ± 0.05 1

≥14.5 ≤10.7 0.3 ± 0.05 1

≥19 ≤12.8 0.4 ± 0.05 1

≥21 ≤16.5 0.5 ± 0.05 1

≥24 ≤18.5 0.5 ± 0.05 1

≥26 ≤19.5 0.5 ± 0.05 1

≥30 ≤21.5 0.5 ± 0.05 1

≥82 ≤24 0.5 ± 0.05 1

≥91 ≤64 0.5 ± 0.05 1

≥106 ≤82 0.6 ± 0.05 1

≥118 ≤96 0.6 ± 0.05 1

≥136 ≤103 0.6 ± 0.05 1

≥156 ≤125 0.6 ± 0.05 1

The ≥82 mm expanded ID / ≤24 mm recovered ID row is reproduced exactly as printed. Its diameter relationship differs markedly from adjacent rows; confirm the intended specification before selection or ordering. A shrink ratio is not assigned to individual rows in this table.

Standard packaging in the source table is 1 m. Stock availability, custom lengths and manufacturing lead time are confirmed at quotation. Maximum diameter capability for Yozonetech is 265 mm with existing tooling and 310 mm for production.

Additional Catalog Size Examples

The following recovered ID × wall thickness examples are listed jointly for FEP/PFA in the supplied catalog. They are separate references from the preceding FEP specification table and should be confirmed for the requested FEP construction.

**Recovered ID mm** **Wall thickness mm**

1.6 0.15

3.6 0.1

8 0.3

16 0.25

30 0.35

130 0.5

180 0.55

200 0.6

Other dimensions may be requested. Use the Yozonetech diameter capability stated above when planning custom orders.

Additional Application References

The source catalog also lists aerospace, electronics, chemicals and automotive manufacturing, together with insulating sheaths, water treatment, communications equipment, motor rotor and stator insulation, office machinery, paper machinery, printing machinery and roller coverings. Select the FEP construction against the actual thermal, electrical, chemical and mechanical requirements.

Shrink Ratio and Product Selection

The correct FEP heat shrink size depends on both the installation diameter and the final required diameter.

Basic selection principle:

Expanded ID > Maximum component diameter; Recovered ID ≤ Required finished diameter.

For components with connectors, terminals or irregular shapes, the maximum outside dimension must be considered.

For custom projects, customers can provide: Maximum Installation OD; Finished Required OD; Required Wall Thickness; Component Drawing or Sample.

Yozonetech can then evaluate the appropriate FEP heat shrink construction.

Transparency: A Key Advantage of FEP

Transparency is one of the major reasons for selecting FEP Heat Shrink Tube. After installation, users may still be able to inspect internal wire colors, cable identification, connector conditions, sensor components, printed markings and internal assembly structures.

This is particularly useful for applications where complete encapsulation is required, but visual inspection or identification must remain possible.

Electrical Insulation

FEP Heat Shrink Tube can provide electrical insulation and mechanical protection for a variety of electrical assemblies.

Wire insulation; Terminal covering; Connector protection; Sensor lead protection; Electronic component insulation; High-temperature wiring assemblies.

For electrical applications, consider voltage, required dielectric performance, wall thickness, operating temperature and environment. For high-voltage or safety-critical applications, the electrical properties should be confirmed for the exact product construction.

Chemical Resistance and Environmental Protection

FEP provides excellent resistance to a broad range of chemicals. After shrinking, the tubing can provide a close-fitting protective layer around sensitive components.

Chemical processing equipment; Laboratory instruments; Sensors; Analytical equipment; Fluid-handling components; Corrosive environments.

Chemical compatibility depends on chemical type, concentration, temperature, exposure duration, pressure and mechanical stress. For critical applications, chemical compatibility should be evaluated using actual operating conditions.

Temperature Performance

FEP Heat Shrink Tube can be used in applications requiring greater thermal performance than conventional heat-shrink materials.

Recovery Temperature

The temperature required for the tubing to shrink.

Continuous Operating Temperature

The temperature range in which the finished tubing assembly can operate continuously.

Short-Term Temperature Exposure

Temporary thermal exposure that may differ from the continuous operating limit.

The final product specification should define these values according to the exact FEP material and construction.

FEP Heat Shrink Tube vs PTFE Heat Shrink Tube

**Feature** **FEP Heat Shrink Tube** **PTFE Heat Shrink Tube**

Transparency Excellent Usually opaque / translucent

Heat shrinkability Excellent Excellent

Chemical resistance Excellent Excellent

Electrical insulation Excellent Excellent

Surface Smooth Smooth

Visual inspection Major advantage Limited

Temperature capability Excellent Higher potential in demanding applications

Typical use Transparent protection and insulation Severe temperature and chemical environments

Choose FEP Heat Shrink Tube when transparency and visual inspection are important. Choose PTFE Heat Shrink Tube when the application prioritizes more demanding high-temperature performance and PTFE-specific material properties.

FEP Heat Shrink Tube vs Standard FEP Tube

**Feature** **Standard FEP Tube** **FEP Heat Shrink Tube**

Basic form Extruded tube Expanded shrinkable tube

Diameter change after heating No Yes

Transparency Excellent Excellent

Fluid transfer Major application Limited / application-specific

Component protection General Close-fitting

Electrical insulation Excellent Excellent

Installation Push / route / assemble Heat recovery

Main selection ID / OD / wall Expanded ID / recovered ID / wall

Choose Standard FEP Tube for fluid transfer, chemical tubing, transparent process lines, general insulation and continuous tubing.

Choose FEP Heat Shrink Tube for heat-shrink installation, close-fitting protection, transparent component coverage, electrical insulation and chemical-resistant encapsulation.

FEP Heat Shrink Tube vs Other Heat Shrink Materials

**Material** **Main Advantage** **Typical Application**

FEP Transparency + chemical resistance Visual inspection and chemical protection

PTFE High temperature + chemical resistance Severe industrial environments

Polyolefin Cost-effective General electrical insulation

PVDF Mechanical and chemical performance Industrial protection

Silicone Flexibility Flexible electrical protection

FEP is particularly attractive when the application requires a combination of Transparency + Chemical Resistance + Electrical Insulation + Heat Shrinkability.

**Certifications**

FEP FDA certificate

FEP REACH certificate

FEP ROHS certificate

FEP Heat Shrink Tubing Certification

Yozonetech FEP FDA certificate

Yozonetech FEP ROHS certificate

Yozonetech FEP REACH certificate

Yozonetech FEP MSDS

Yozonetech FEP technical data sheet

Typical Applications

Electrical and Electronics

Wire insulation; Connector protection; Terminal covering; Sensor protection; Cable assemblies; Electronic components.

Chemical Processing

Instrument protection; Sensor sleeves; Chemical-resistant component protection; Corrosion-sensitive assemblies.

Laboratory and Analytical Equipment

Transparent component protection; Sensor assemblies; Wire insulation; Analytical instruments; Laboratory equipment.

Medical and Life Science Equipment

Medical equipment components; Transparent protective sleeves; Sensor assemblies; Instrument protection.

Semiconductor and Electronics Manufacturing

Sensor protection; Electrical insulation; Transparent fluoropolymer protection; Chemical-environment components.

Industrial Equipment

Cable protection; Electrical component insulation; Protective sleeves; Transparent identification covers; High-performance equipment assemblies.

For medical/life-science applications, material and regulatory suitability must be confirmed for the specific application.

For semiconductor applications, material cleanliness and particle-control requirements should be evaluated according to the actual process.

Manufacturing and Quality Control

The manufacturing consistency of FEP Heat Shrink Tube directly affects its dimensions, transparency and shrink performance.

Material Selection

FEP material is selected according to the required product grade and application.

Tube Manufacturing

The base tubing is produced with controlled dimensions and surface quality.

Expansion Process

Controlled expansion creates the heat-shrink structure.

Dimensional Inspection

Expanded ID; Recovered ID; Wall thickness; Length.

Shrink Performance Testing

Recovery behavior; Dimensional stability; Surface appearance; Transparency; Uniform shrink performance.

Visual Inspection

Surface defects; Contamination; Bubbles; Foreign particles; Dimensional abnormalities.

Packaging

Straight lengths; Coiled lengths; Custom-cut pieces.

Packaging requirements can be customized for OEM projects.

Custom FEP Heat Shrink Tube

**Our existing tooling supports heat shrink tubing with a maximum inner diameter of 265 mm. We can manufacture heat shrink tubing with an inner diameter up to 310 mm.**

Yozonetech supports custom FEP Heat Shrink Tube solutions.

Expanded inside diameter; Recovered inside diameter; Wall thickness; Shrink ratio; Length; Cut pieces; Continuous supply; Special dimensional tolerances; Application-specific requirements; OEM labeling; Custom packaging.

For a Fast Quotation

Please provide: Expanded ID × Recovered ID × Wall Thickness × Length × Quantity

If possible, also provide:

Component maximum OD; Required finished diameter; Operating temperature; Installation method; Electrical requirements; Chemical exposure; Application; Drawing; Sample.

Why Choose Yozonetech

Fluoropolymer Manufacturing Experience

Yozonetech focuses on fluoropolymer tubing and engineering plastic products for industrial and OEM applications.

Application-Based Product Selection

We help customers evaluate products according to dimensions, temperature, pressure, chemical exposure, electrical requirements and installation conditions.

Custom Manufacturing

Custom dimensions and OEM production are available for application-specific requirements.

Quality and Documentation

Applicable technical and compliance documentation can be provided according to the selected material grade and product requirements.

Complete Fluoropolymer Product Range

PTFE Tube; FEP Tube; PFA Tube; ETFE Tube; PTFE Braided Hose; PTFE Heat Shrink Tube; FEP Heat Shrink Tube; Fluoropolymer rods and sheets; Engineering plastic components.

Certifications and Compliance

FDA-related documentation for applicable grades; RoHS; REACH; ISO 9001; IATF 16949; Customer-specific documentation.

Compliance should always be confirmed for the exact material grade and finished product.

FAQ

What is FEP Heat Shrink Tube

FEP Heat Shrink Tube is an expanded fluoropolymer tubing that contracts when heated, forming a close-fitting protective or insulating layer around a component.

What is the main advantage of FEP Heat Shrink Tube

One of its key advantages is transparency, allowing the covered component to remain visible after installation.

What is FEP Heat Shrink Tube used for

It can be used for electrical insulation, wire protection, connector protection, sensor assemblies, chemical-resistant component protection and transparent protective covering.

Is FEP Heat Shrink Tube transparent

Yes. Transparency is one of the major advantages of FEP heat shrink tubing.

Is FEP Heat Shrink Tube chemically resistant

FEP provides excellent resistance to many chemicals and solvents. Final compatibility should be evaluated according to the specific operating conditions.

How do I choose the correct size

The expanded diameter must be large enough to pass over the component before installation, while the recovered diameter should provide the required finished fit.

What is the difference between FEP Tube and FEP Heat Shrink Tube

Standard FEP tubing maintains its original dimensions. FEP heat shrink tubing is expanded during manufacturing and contracts when heated.

Can FEP Heat Shrink Tube be customized

Yes. Custom expanded ID, recovered ID, wall thickness, length and other specifications can be evaluated. Our existing tooling supports heat shrink tubing with a maximum inner diameter of 265 mm. We can manufacture heat shrink tubing with an inner diameter up to 310 mm.

Can it be used for electrical insulation

Yes. FEP provides good electrical insulation properties and is suitable for many electrical and electronic applications.

What information is required for quotation

Expanded ID, recovered ID, wall thickness, length, quantity, component dimensions, application, operating temperature and any special requirements.

Request a Quote

Looking for Custom FEP Heat Shrink Tubing?

Send us your dimensions and application requirements.

Yozonetech can help evaluate FEP heat shrink solutions for:

Electrical Insulation; Transparent Protection; Chemical Resistance; Component Encapsulation; OEM Applications.

Email: ptfetube@yozonetech.cn

Website: chinaptfetube.com

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FEP Heat Shrinking Tube

YOZONE, as a leading manufacturer and supplier in the field of heat shrink tube production, always provides high quality heat shrink tube. Heat shrink tube is usually made of polymer materials such as polyolefin, which shrinks in diameter when heated and fits tightly to the object to which it is applied.

**FEP heat shrinking tube** are high-performance insulation materials designed for a variety of industrial and electrical applications. Known for their excellent chemical resistance, high-temperature tolerance, and electrical insulation properties, FEP heat shrinking tubes offer reliable protection for wires, cables, and other sensitive components.

**FEP heat shrinking tube** Key Features:

1.High Heat Resistance: FEP tubes can withstand temperatures up to 200°C (392°F), making them suitable for high-temperature applications.

2.Chemical Resistance: These tubes are highly resistant to acids, alkalis, and solvents, ensuring durability in harsh environments.

3.Excellent Electrical Insulation: FEP tubes provide superior insulation, preventing electrical leakage and ensuring safe operation.

4.Transparency: The tubes are transparent, allowing for easy inspection of the underlying components.

5.Flexible and Durable: FEP shrinking tubes are easy to apply and retain their strength, even under extreme conditions.

Characteristic Description

Main Components Fluorinated Ethylene Propylene (FEP) polymer

Temperature Resistance Range -200°C to 200°C (-328°F to 392°F)

Chemical Resistance Acids, alkalis, organic solvents, and oils

Electrical Insulation Advantages High dielectric strength, temperature stability, chemical resistance, non-flammability

Shrink Ratio Typically 2:1 or 3:1

**Applications of FEP Heat Shrinking Tubes**

Industry Application Description Benefits

Electronics Protecting and insulating wires and connections Enhanced safety and durability

Automotive Insulating and bundling cables in vehicles Improved heat resistance and chemical durability

Aerospace Providing insulation for wiring in aircraft systems Lightweight, reliable protection under extreme conditions

Telecommunications Insulating connectors and bundling cables in telecom equipment Ensures signal integrity and environmental protection

Medical Devices Protecting sensitive wiring in medical instruments High reliability and compliance with hygiene standards

Industrial Equipment Insulating cables and protecting components in machinery Enhanced resistance to chemicals and mechanical wear

Renewable Energy Insulating wiring in solar panels and wind turbines Durable protection against environmental factors

**What is the Lifespan of FEP Heat Shrinking Tubes?**

FEP heat shrinking tubes are known for their long lifespan and durability. Under normal conditions, heat shrink tubing suppliers can last up to 20+ years. Their lifespan is largely determined by environmental factors such as temperature fluctuations, exposure to UV light, and chemical contact. In high-stress environments, like continuous high-temperature exposure or extreme chemical exposure, the lifespan may be shorter, but overall, FEP heat shrinking tubes are highly resistant to degradation, making them a reliable long-term solution.

**What is the Shrinking Speed of FEP Heat Shrinking Tubes?**

The shrinking speed of FEP heat shrink tubing is relatively fast compared to other materials.

**Shrinking Speed of FEP Heat Shrinking Tubes**

Characteristic

Description

Shrinking Speed

Starts shrinking within seconds of exposure to heat

Full Shrinkage Time

Typically takes 1-2 minutes to complete

Ideal Shrinkage Temperature

200°C to 250°C (392°F to 482°F)

Recommended Heat Source

Heat gun or oven

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FEP-100-Virgin-Transparent-Extruded-Tubec — FEP100% Virgin Flexible Transparent Tubing OEM Manufacturer

Product Overview

FEP Tube is an extruded fluoropolymer tube made from fluorinated ethylene propylene (FEP). It is widely selected when a project needs the chemical resistance and thermal stability associated with fluoropolymers together with excellent transparency and melt-processability. The clear tubing construction is particularly useful when operators need to see flow, bubbles, color changes or possible contamination inside the line.

Compared with PTFE, FEP can be melt-processed, which supports continuous extrusion and consistent transparent tubing production. Compared with PFA, FEP is often considered when transparency, chemical resistance and practical processing are important without requiring the highest level of purity associated with specialized PFA grades.

Yozonetech supplies FEP tubing for chemical, laboratory, electrical, pneumatic, instrumentation and industrial applications. ID, OD, wall thickness and length can be evaluated according to the required application, production capability and agreed specification.

Why Choose FEP Tubing?

**Performance** **Engineering / Application Value**

Excellent Transparency Clear tubing allows visual monitoring of fluid flow, bubbles, color and potential contamination.

Chemical Resistance Resists many aggressive chemicals and solvents; final compatibility depends on the exact medium, concentration, temperature and exposure time.

Melt Processability FEP can be melt-extruded, enabling continuous tubing manufacture and stable dimensional control.

Thermal Stability Suitable for demanding thermal environments within the limits of the selected grade, geometry and service conditions.

Electrical Insulation Strong dielectric properties make FEP suitable for selected wire, cable and electrical insulation applications.

Low Surface Adhesion Smooth fluoropolymer surfaces can reduce adhesion of many materials and support clean fluid pathways.

Low Moisture Absorption Very low water absorption supports stable performance in wet and humid environments.

Weather / UV Resistance FEP provides strong resistance to many environmental influences and is useful in selected outdoor or exposed systems.

Clean Processing Options Appropriate grades and processing controls can be selected when cleanliness is important; exact requirements should be specified.

FEP Tube Product Range

**Product Type** **Typical Positioning**

Standard FEP Tube General-purpose transparent fluoropolymer tubing for industrial, laboratory and fluid-handling applications.

Transparent / Clear FEP Tube High-visibility tubing where visual inspection of the process path is important.

Thin-Wall FEP Tube Lightweight tubing for insulation, instrumentation and compact fluid routing where the design permits reduced wall thickness.

Thick-Wall FEP Tube Higher-wall construction for increased mechanical robustness; pressure capability must be confirmed for exact dimensions.

Small-Bore FEP Tube Small-ID tubing for sampling, instrumentation, analytical equipment and compact fluid pathways.

FEP Insulation Tube Electrical and wire/cable protection applications requiring fluoropolymer insulation.

FEP Heat Shrink Tube Heat-shrinkable FEP products for applications requiring conformal insulation or protection; link to dedicated heat-shrink product page if applicable.

Custom FEP Tube Application-specific ID, OD, wall thickness, length, packaging and other agreed requirements.

FEP Material & Performance

FEP occupies an important position between conventional fluoropolymer tubing and specialized high-purity PFA tubing. Its combination of transparency, chemical resistance and melt-processability makes it a practical choice for many visible fluid paths and electrical applications.

**Property** **Engineering Consideration**

Chemical Compatibility Excellent resistance to many acids, bases, solvents and process chemicals. Verify the exact medium and service conditions.

Transparency One of FEP tubing's most useful characteristics, enabling visual inspection of the internal flow path.

Thermal Performance Suitable for elevated-temperature service within grade- and application-specific limits.

Electrical Properties High dielectric strength and good insulation behavior support electrical and cable applications.

Surface Behavior Smooth fluoropolymer surface helps reduce adhesion and supports clean fluid handling.

Melt Processability Allows conventional melt-extrusion manufacturing and supports consistent continuous tubing.

Moisture Resistance Very low water absorption contributes to stable performance in humid conditions.

Weather Resistance Good resistance to weathering and environmental exposure for suitable applications.

Purity Clean or higher-purity options may be evaluated, but high-purity semiconductor requirements should be compared carefully with PFA grade options.

Technical Specifications

This is the website-level specification framework. Exact dimensional ranges, tolerances, pressure capability, temperature limits and compliance should be confirmed against the current Yozonetech product datasheet or quotation.

**Parameter** **Specification / Note**

Material FEP / Fluorinated Ethylene Propylene

Product Construction Extruded FEP tubing

Appearance Transparent / clear or natural; appearance depends on grade and processing

Temperature Capability Application- and grade-dependent; confirm exact operating limits for the selected size and service

Chemical Resistance Excellent resistance to many aggressive chemicals and solvents

Transparency High; suitable for visual monitoring of flow and internal condition

Electrical Insulation Excellent dielectric / insulating performance

Inner Surface Smooth fluoropolymer surface

Water Absorption Very low

Inner Diameter (ID) Customized according to application and tooling capability

Outer Diameter (OD) Customized according to application and tooling capability

Wall Thickness Customized according to ID, OD, pressure and application

Length Coil or straight cut; customized subject to specification

Form Straight tube / coil; special constructions subject to evaluation

Pressure Rating Size-, wall-thickness-, temperature- and construction-dependent; confirm exact application

Compliance FDA, RoHS, REACH and other documentation may be available for applicable grades; confirm exact product and certificate

Important: Do not publish a universal pressure rating or unconditional temperature rating for all FEP tubing. Mechanical capability changes with tube geometry, temperature, grade, fittings and installation conditions.

Technical Specifications

Physical & Chemical Properties of Fluororplastics

SPECIFIC GRAVITY

TECHNICAL NOTE for FLIUOROPOLYMER

FEP Tube vs. PTFE and PFA

The most useful role of an FEP product page is to help a buyer understand when FEP is the better engineering choice rather than simply listing material properties.

**Property** **FEP** **PTFE** **PFA**

Transparency Excellent Generally limited / translucent Excellent

Chemical Resistance Excellent Excellent Excellent

Melt Processability Yes No conventional melt processing Yes

High-Purity Potential Good to very good; grade-dependent Good to excellent; grade-dependent Excellent; grade-dependent

Electrical Insulation Excellent Excellent Excellent

Typical Selection Logic Transparent, processable fluoropolymer tubing for visible fluid paths and insulation Broad chemical/thermal performance, low friction and electrical insulation High-purity, transparent and demanding chemical-processing systems

Relative Positioning Balanced performance / transparency option Broad-performance workhorse Premium option for purity and demanding process environments

Practical rule: choose FEP when transparency and melt-processable fluoropolymer construction are important; choose PTFE when broad chemical/thermal performance and low friction are priorities; choose PFA when high purity, transparency and demanding chemical-processing requirements justify the higher-spec material.

How to Select the Right FEP Tube

**Selection Step** **What to Define**

1. Identify the Medium Chemical, solvent, water, gas, reagent, oil, process fluid or other conveyed medium.

2. Define Visibility If operators need to see flow, bubbles, color or contamination, FEP's transparency may be a major advantage.

3. Define Temperature Specify minimum, normal and maximum operating temperature, including short-term peaks.

4. Define Pressure Provide working pressure, peak pressure, pulsation and pressure cycles.

5. Specify Dimensions ID, OD and wall thickness determine flow, fit, flexibility and mechanical behavior.

6. Define Flexibility Consider bend radius, routing, movement, vibration and installation method.

7. Define Electrical Requirements For insulation applications, specify voltage, dielectric requirements, cable size and environmental conditions.

8. Confirm Purity / Compliance State FDA, RoHS, REACH, USP Class VI or customer-specific requirements where applicable.

9. Define Packaging Specify coil length, straight length, protective packaging, labeling and quantity.

Temperature & Pressure Considerations

FEP tubing should be evaluated as a complete system. A large-diameter thin-wall tube and a small-bore thick-wall tube can have very different pressure capability even when they use the same FEP material.

Evaluate pressure at the actual operating temperature rather than relying on room-temperature data.

Confirm peak pressure, pressure pulses and repeated thermal cycling.

Consider fittings, clamps, bend radius, unsupported spans and installation stress.

For demanding pressure service, request a rating for the exact tube dimensions and construction.

For critical systems, confirm final specifications using the current Yozonetech datasheet or quotation.

**Certifications**

FEP FDA certificate

FEP REACH certificate

FEP ROHS certificate

FEP Tubing Certification

Yozonetech FEP FDA certificate

Yozonetech FEP ROHS certificate

Yozonetech FEP REACH certificate

Yozonetech FEP MSDS

Yozonetech FEP technical data sheet

Applications

**Industry** **Typical Uses**

Chemical Processing Transparent chemical transfer lines, reagent delivery, sampling and corrosive-media routing.

Laboratory & Analytical Instrument tubing, sampling lines, reagent paths and visible fluid connections.

Semiconductor & Electronics Chemical delivery, instrumentation and selected clean fluid applications where FEP grade requirements are satisfied.

Electrical & Electronics Wire and cable insulation, protective sleeves and electrical isolation.

Pneumatic & Instrumentation Clean gas, air and control lines where chemical and thermal resistance are required.

Automotive Selected fluid routing, sensor lines and protective applications requiring fluoropolymer performance.

Food & Beverage Suitable fluid-contact applications where the exact FEP grade meets applicable requirements.

Pharmaceutical / Life Science Selected fluid pathways and laboratory systems subject to grade, cleanliness and regulatory requirements.

Industrial Equipment Pump connections, process equipment, protective tubing and general chemical-resistant fluid routing.

Manufacturing & Quality Control

Because FEP is melt-processable, extrusion control is central to achieving stable transparency and dimensional consistency. For industrial customers, repeatable ID, OD, wall thickness, length and appearance are important for assembly and system performance.

**Process** **Quality Focus**

Material Selection Select FEP grade according to chemical, thermal, electrical, purity and regulatory requirements.

Material Preparation Prepare resin according to the controlled extrusion process.

Extrusion Control tooling, melt temperature and process parameters for stable tube geometry and appearance.

Sizing & Cooling Control ID, OD and wall thickness during sizing and cooling.

Dimensional Inspection Check ID, OD, wall thickness, length and appearance against the agreed specification.

Surface / Appearance Check Inspect transparency, surface defects and overall tube condition.

Cutting / Coiling Produce controlled straight lengths or coils with suitable protection.

Final Inspection Verify dimensions, appearance, labeling, packaging and order-specific requirements.

Custom FEP Tube Solutions

Yozonetech can evaluate custom FEP tubing for OEM and industrial programs. Instead of selecting only from a fixed catalog, the tubing can be specified around the actual fluid, dimensions, installation method and compliance requirements.

Custom inner diameter and outer diameter

Custom wall thickness

Custom straight length or coil length

Transparent / clear construction

Small-bore tubing

Thin-wall or thick-wall tubing

Electrical insulation tubing

Application-specific grade requirements

OEM labeling and packaging subject to order requirements

Application-specific documentation and compliance support

For a Fast Quotation: send ID × OD or ID × wall thickness, length, quantity, medium, operating temperature, working pressure, application, electrical requirements if applicable, and certification requirements. A drawing or sample is useful for non-standard tubing.

Why Choose Yozonetech for FEP Tubing?

**Yozonetech Advantage** **Customer Value**

Manufacturer Direct Direct manufacturing supply for fluoropolymer tubing and related products.

Broad Fluoropolymer Range PTFE, PFA, FEP, ETFE and PVDF tubing support application-based material selection.

Custom Dimensions Application-specific ID, OD, wall thickness and length can be evaluated.

OEM / ODM Support Suitable for customized industrial programs and repeat production.

Application-Oriented Support Technical discussions can be based on medium, temperature, pressure, dimensions, electrical needs and compliance.

Documentation Support Applicable technical and compliance documentation can be provided according to product grade and market.

Integrated Product Portfolio FEP can be combined with PTFE/PFA tubing, heat-shrink products and reinforced hose solutions.

Certifications & Compliance

Depending on product grade, application and destination market, documentation may include:

FDA-related documentation for applicable food-contact grades

RoHS

REACH

ISO 9001

ISO 14001

ISO 45001

IATF 16949

USP Class VI for applicable grades/products

Other customer-specific documentation subject to product and market requirements

Compliance Disclaimer: Certification availability is grade- and product-specific. Every FEP formulation should not be assumed to carry every certificate. Confirm the exact declaration, certificate or test report for the product supplied.

FEP Tube FAQ

What is FEP tubing?

FEP tubing is extruded tubing made from fluorinated ethylene propylene, a melt-processable fluoropolymer known for transparency, chemical resistance, thermal stability and electrical insulation.

What is FEP tubing used for?

Typical uses include chemical transfer, laboratory equipment, analytical systems, electrical insulation, instrumentation and industrial fluid handling.

Is FEP tubing transparent?

Yes. FEP can provide excellent optical clarity, making it useful where operators need to visually monitor flow or the condition of the internal fluid path.

What is the difference between FEP and PTFE tubing?

Both provide strong chemical and thermal performance. FEP is melt-processable and highly transparent, while PTFE is widely selected for broad performance, low friction and demanding thermal applications.

What is the difference between FEP and PFA tubing?

Both are melt-processable and transparent fluoropolymers. PFA is commonly chosen when higher purity and demanding chemical-processing performance are central requirements, while FEP is often a practical choice where transparency and overall performance balance are the priority.

Can FEP tubing handle aggressive chemicals?

FEP resists many aggressive chemicals and solvents. Compatibility should always be checked against the exact medium, concentration, temperature and exposure time.

Can FEP tubing be used for electrical insulation?

Yes. FEP has strong dielectric and insulating properties and is used in selected wire, cable and electrical protection applications.

Can FEP tube dimensions be customized?

Yes. ID, OD, wall thickness and length can be customized subject to tooling and production capability.

Can FEP tubing be supplied in coils?

Yes. Suitable dimensions can be supplied in coils, and straight-cut lengths can also be specified.

What information should I provide for an FEP tube quotation?

Provide ID × OD or ID × wall thickness, length, quantity, medium, temperature, pressure, application and certification requirements. For insulation use, also provide electrical requirements.

Request an FEP Tube Quote

Need transparent fluoropolymer tubing for chemical transfer, laboratory equipment, electrical insulation or industrial fluid handling? Send the dimensions and service conditions. Yozonetech can evaluate the appropriate FEP grade, tubing construction and manufacturing specification.

**Information** **Recommended Details**

Required Dimensions ID × OD or ID × wall thickness

Length Coil length or straight-cut length

Medium Chemical / gas / water / oil / reagent / process fluid / other

Temperature Minimum / normal / maximum operating temperature

Pressure Working pressure and peak pressure

Electrical Requirements Voltage / insulation / cable or wire size, if applicable

Quantity Sample / trial / batch / annual demand

Compliance FDA / RoHS / REACH / USP Class VI / customer standard

Application Equipment, industry and installation conditions

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No.	Size	ID before shrinking(mm)	ID after shrinking(mm)	Wall after shrinking(mm)
1	XMC-FEP φ1.2mm	>1.20	<0.70	0.20±0.05
2	XMC-FEP φ2.5mm	>2.50	<1.80	0.20±0.05
3	XMC-FEP φ2.8mm	>2.80	<2.10	0.25±0.05
4	XMC-FEP φ3.1mm	>3.10	<2.20	0.25±0.05
5	XMC-FEP φ4.7mm	>4.70	<2.90	0.25±0.05

Item	Test method	Typical data
Tensile strength(Mpa)	ASTM D 638	≥13.8Mpa
Elongation at break	ASTM D 638	≥300%
Axial shrinkage change rate	ASTM D 2671	±10%
Dielectric strength (kV/mm)	ASTM D 2671	≥19.70
Insulation withstand voltage	ASTM D 149	4000V, no breakdown in 60s
Volume resistivity	UL 224	≥101*Ω.cm
Low temperature flexibility	AMS-DTL-23053	65℃/4 hours, no cracks
Copper corrosion	AMS-DTL-23053	No dents or blackening
clarity stability	AMS-DTL-23053	pass
Flame retardancy	ASTM D 2671C法	Self-extinguishing within 15s

Parameter	FEP reference specification
Material	FEP / fluorinated ethylene propylene
Construction	Expanded, heat-activated shrinkable tubing
Appearance	Transparent
Catalog stable operating range	−200°C to +200°C
Additional catalog temperature entry	−200°C to +200°C, printed under “Heat shrink temperature range”
Catalog shrink ratios	1.3:1 and 1.7:1
Chemical properties	High chemical stability; compatibility depends on actual exposure
Electrical properties	Strong electrical insulating performance; confirm assembly requirements
Physical properties	Flexibility and resistance to brittleness at low temperature
Biocompatibility description	Listed in the catalog; application-specific qualification required
Current tooling maximum ID	265 mm
Maximum producible ID	310 mm
Customization	Expanded ID, recovered ID, wall thickness, length and tolerances

Expanded ID mm	Recovered ID mm	Recovered wall mm	Standard length m
≥3.8	≤2.7	0.2 ± 0.03	1
≥4.5	≤3.3	0.2 ± 0.03	1
≥5.5	≤4.3	0.2 ± 0.03	1
≥7.0	≤5.1	0.2 ± 0.03	1
≥7.9	≤6.0	0.2 ± 0.03	1
≥10.6	≤7.4	0.3 ± 0.03	1
≥12.5	≤8.8	0.3 ± 0.05	1
≥14.5	≤10.7	0.3 ± 0.05	1
≥19	≤12.8	0.4 ± 0.05	1
≥21	≤16.5	0.5 ± 0.05	1
≥24	≤18.5	0.5 ± 0.05	1
≥26	≤19.5	0.5 ± 0.05	1
≥30	≤21.5	0.5 ± 0.05	1
≥82	≤24	0.5 ± 0.05	1
≥91	≤64	0.5 ± 0.05	1
≥106	≤82	0.6 ± 0.05	1
≥118	≤96	0.6 ± 0.05	1
≥136	≤103	0.6 ± 0.05	1
≥156	≤125	0.6 ± 0.05	1

Recovered ID mm	Wall thickness mm
1.6	0.15
3.6	0.1
8	0.3
16	0.25
30	0.35
130	0.5
180	0.55
200	0.6

Feature	FEP Heat Shrink Tube	PTFE Heat Shrink Tube
Transparency	Excellent	Usually opaque / translucent
Heat shrinkability	Excellent	Excellent
Chemical resistance	Excellent	Excellent
Electrical insulation	Excellent	Excellent
Surface	Smooth	Smooth
Visual inspection	Major advantage	Limited
Temperature capability	Excellent	Higher potential in demanding applications
Typical use	Transparent protection and insulation	Severe temperature and chemical environments

Feature	Standard FEP Tube	FEP Heat Shrink Tube
Basic form	Extruded tube	Expanded shrinkable tube
Diameter change after heating	No	Yes
Transparency	Excellent	Excellent
Fluid transfer	Major application	Limited / application-specific
Component protection	General	Close-fitting
Electrical insulation	Excellent	Excellent
Installation	Push / route / assemble	Heat recovery
Main selection	ID / OD / wall	Expanded ID / recovered ID / wall

Material	Main Advantage	Typical Application
FEP	Transparency + chemical resistance	Visual inspection and chemical protection
PTFE	High temperature + chemical resistance	Severe industrial environments
Polyolefin	Cost-effective	General electrical insulation
PVDF	Mechanical and chemical performance	Industrial protection
Silicone	Flexibility	Flexible electrical protection

Characteristic	Description
Main Components	Fluorinated Ethylene Propylene (FEP) polymer
Temperature Resistance Range	-200°C to 200°C (-328°F to 392°F)
Chemical Resistance	Acids, alkalis, organic solvents, and oils
Electrical Insulation Advantages	High dielectric strength, temperature stability, chemical resistance, non-flammability
Shrink Ratio	Typically 2:1 or 3:1

Industry	Application Description	Benefits
Electronics	Protecting and insulating wires and connections	Enhanced safety and durability
Automotive	Insulating and bundling cables in vehicles	Improved heat resistance and chemical durability
Aerospace	Providing insulation for wiring in aircraft systems	Lightweight, reliable protection under extreme conditions
Telecommunications	Insulating connectors and bundling cables in telecom equipment	Ensures signal integrity and environmental protection
Medical Devices	Protecting sensitive wiring in medical instruments	High reliability and compliance with hygiene standards
Industrial Equipment	Insulating cables and protecting components in machinery	Enhanced resistance to chemicals and mechanical wear
Renewable Energy	Insulating wiring in solar panels and wind turbines	Durable protection against environmental factors

Characteristic	Description
Shrinking Speed	Starts shrinking within seconds of exposure to heat
Full Shrinkage Time	Typically takes 1-2 minutes to complete
Ideal Shrinkage Temperature	200°C to 250°C (392°F to 482°F)
Recommended Heat Source	Heat gun or oven

Performance	Engineering / Application Value
Excellent Transparency	Clear tubing allows visual monitoring of fluid flow, bubbles, color and potential contamination.
Chemical Resistance	Resists many aggressive chemicals and solvents; final compatibility depends on the exact medium, concentration, temperature and exposure time.
Melt Processability	FEP can be melt-extruded, enabling continuous tubing manufacture and stable dimensional control.
Thermal Stability	Suitable for demanding thermal environments within the limits of the selected grade, geometry and service conditions.
Electrical Insulation	Strong dielectric properties make FEP suitable for selected wire, cable and electrical insulation applications.
Low Surface Adhesion	Smooth fluoropolymer surfaces can reduce adhesion of many materials and support clean fluid pathways.
Low Moisture Absorption	Very low water absorption supports stable performance in wet and humid environments.
Weather / UV Resistance	FEP provides strong resistance to many environmental influences and is useful in selected outdoor or exposed systems.
Clean Processing Options	Appropriate grades and processing controls can be selected when cleanliness is important; exact requirements should be specified.

Product Type	Typical Positioning
Standard FEP Tube	General-purpose transparent fluoropolymer tubing for industrial, laboratory and fluid-handling applications.
Transparent / Clear FEP Tube	High-visibility tubing where visual inspection of the process path is important.
Thin-Wall FEP Tube	Lightweight tubing for insulation, instrumentation and compact fluid routing where the design permits reduced wall thickness.
Thick-Wall FEP Tube	Higher-wall construction for increased mechanical robustness; pressure capability must be confirmed for exact dimensions.
Small-Bore FEP Tube	Small-ID tubing for sampling, instrumentation, analytical equipment and compact fluid pathways.
FEP Insulation Tube	Electrical and wire/cable protection applications requiring fluoropolymer insulation.
FEP Heat Shrink Tube	Heat-shrinkable FEP products for applications requiring conformal insulation or protection; link to dedicated heat-shrink product page if applicable.
Custom FEP Tube	Application-specific ID, OD, wall thickness, length, packaging and other agreed requirements.

Property	Engineering Consideration
Chemical Compatibility	Excellent resistance to many acids, bases, solvents and process chemicals. Verify the exact medium and service conditions.
Transparency	One of FEP tubing's most useful characteristics, enabling visual inspection of the internal flow path.
Thermal Performance	Suitable for elevated-temperature service within grade- and application-specific limits.
Electrical Properties	High dielectric strength and good insulation behavior support electrical and cable applications.
Surface Behavior	Smooth fluoropolymer surface helps reduce adhesion and supports clean fluid handling.
Melt Processability	Allows conventional melt-extrusion manufacturing and supports consistent continuous tubing.
Moisture Resistance	Very low water absorption contributes to stable performance in humid conditions.
Weather Resistance	Good resistance to weathering and environmental exposure for suitable applications.
Purity	Clean or higher-purity options may be evaluated, but high-purity semiconductor requirements should be compared carefully with PFA grade options.

Parameter	Specification / Note
Material	FEP / Fluorinated Ethylene Propylene
Product Construction	Extruded FEP tubing
Appearance	Transparent / clear or natural; appearance depends on grade and processing
Temperature Capability	Application- and grade-dependent; confirm exact operating limits for the selected size and service
Chemical Resistance	Excellent resistance to many aggressive chemicals and solvents
Transparency	High; suitable for visual monitoring of flow and internal condition
Electrical Insulation	Excellent dielectric / insulating performance
Inner Surface	Smooth fluoropolymer surface
Water Absorption	Very low
Inner Diameter (ID)	Customized according to application and tooling capability
Outer Diameter (OD)	Customized according to application and tooling capability
Wall Thickness	Customized according to ID, OD, pressure and application
Length	Coil or straight cut; customized subject to specification
Form	Straight tube / coil; special constructions subject to evaluation
Pressure Rating	Size-, wall-thickness-, temperature- and construction-dependent; confirm exact application
Compliance	FDA, RoHS, REACH and other documentation may be available for applicable grades; confirm exact product and certificate

Property	FEP	PTFE	PFA
Transparency	Excellent	Generally limited / translucent	Excellent
Chemical Resistance	Excellent	Excellent	Excellent
Melt Processability	Yes	No conventional melt processing	Yes
High-Purity Potential	Good to very good; grade-dependent	Good to excellent; grade-dependent	Excellent; grade-dependent
Electrical Insulation	Excellent	Excellent	Excellent
Typical Selection Logic	Transparent, processable fluoropolymer tubing for visible fluid paths and insulation	Broad chemical/thermal performance, low friction and electrical insulation	High-purity, transparent and demanding chemical-processing systems
Relative Positioning	Balanced performance / transparency option	Broad-performance workhorse	Premium option for purity and demanding process environments

Selection Step	What to Define
1. Identify the Medium	Chemical, solvent, water, gas, reagent, oil, process fluid or other conveyed medium.
2. Define Visibility	If operators need to see flow, bubbles, color or contamination, FEP's transparency may be a major advantage.
3. Define Temperature	Specify minimum, normal and maximum operating temperature, including short-term peaks.
4. Define Pressure	Provide working pressure, peak pressure, pulsation and pressure cycles.
5. Specify Dimensions	ID, OD and wall thickness determine flow, fit, flexibility and mechanical behavior.
6. Define Flexibility	Consider bend radius, routing, movement, vibration and installation method.
7. Define Electrical Requirements	For insulation applications, specify voltage, dielectric requirements, cable size and environmental conditions.
8. Confirm Purity / Compliance	State FDA, RoHS, REACH, USP Class VI or customer-specific requirements where applicable.
9. Define Packaging	Specify coil length, straight length, protective packaging, labeling and quantity.

Industry	Typical Uses
Chemical Processing	Transparent chemical transfer lines, reagent delivery, sampling and corrosive-media routing.
Laboratory & Analytical	Instrument tubing, sampling lines, reagent paths and visible fluid connections.
Semiconductor & Electronics	Chemical delivery, instrumentation and selected clean fluid applications where FEP grade requirements are satisfied.
Electrical & Electronics	Wire and cable insulation, protective sleeves and electrical isolation.
Pneumatic & Instrumentation	Clean gas, air and control lines where chemical and thermal resistance are required.
Automotive	Selected fluid routing, sensor lines and protective applications requiring fluoropolymer performance.
Food & Beverage	Suitable fluid-contact applications where the exact FEP grade meets applicable requirements.
Pharmaceutical / Life Science	Selected fluid pathways and laboratory systems subject to grade, cleanliness and regulatory requirements.
Industrial Equipment	Pump connections, process equipment, protective tubing and general chemical-resistant fluid routing.

Process	Quality Focus
Material Selection	Select FEP grade according to chemical, thermal, electrical, purity and regulatory requirements.
Material Preparation	Prepare resin according to the controlled extrusion process.
Extrusion	Control tooling, melt temperature and process parameters for stable tube geometry and appearance.
Sizing & Cooling	Control ID, OD and wall thickness during sizing and cooling.
Dimensional Inspection	Check ID, OD, wall thickness, length and appearance against the agreed specification.
Surface / Appearance Check	Inspect transparency, surface defects and overall tube condition.
Cutting / Coiling	Produce controlled straight lengths or coils with suitable protection.
Final Inspection	Verify dimensions, appearance, labeling, packaging and order-specific requirements.

Yozonetech Advantage	Customer Value
Manufacturer Direct	Direct manufacturing supply for fluoropolymer tubing and related products.
Broad Fluoropolymer Range	PTFE, PFA, FEP, ETFE and PVDF tubing support application-based material selection.
Custom Dimensions	Application-specific ID, OD, wall thickness and length can be evaluated.
OEM / ODM Support	Suitable for customized industrial programs and repeat production.
Application-Oriented Support	Technical discussions can be based on medium, temperature, pressure, dimensions, electrical needs and compliance.
Documentation Support	Applicable technical and compliance documentation can be provided according to product grade and market.
Integrated Product Portfolio	FEP can be combined with PTFE/PFA tubing, heat-shrink products and reinforced hose solutions.

Information	Recommended Details
Required Dimensions	ID × OD or ID × wall thickness
Length	Coil length or straight-cut length
Medium	Chemical / gas / water / oil / reagent / process fluid / other
Temperature	Minimum / normal / maximum operating temperature
Pressure	Working pressure and peak pressure
Electrical Requirements	Voltage / insulation / cable or wire size, if applicable
Quantity	Sample / trial / batch / annual demand
Compliance	FDA / RoHS / REACH / USP Class VI / customer standard
Application	Equipment, industry and installation conditions

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Product Overview

Key Features

Transparent for Visual Inspection

Excellent Chemical Resistance

Heat-Shrink Conformal Fit

Excellent Electrical Insulation

High Temperature Performance

Smooth, Low-Friction Surface

Why Choose FEP Heat Shrink Tubing

Product Construction

Technical Specifications

Technical Specifications

Large Diameter Production Capability

Complete FEP Heat Shrink Specification Table

Additional Catalog Size Examples

Additional Application References

Shrink Ratio and Product Selection

Transparency: A Key Advantage of FEP

Electrical Insulation

Chemical Resistance and Environmental Protection

Temperature Performance

Recovery Temperature

Continuous Operating Temperature

Short-Term Temperature Exposure

FEP Heat Shrink Tube vs PTFE Heat Shrink Tube

FEP Heat Shrink Tube vs Standard FEP Tube

FEP Heat Shrink Tube vs Other Heat Shrink Materials

Certifications

FEP FDA certificate

FEP REACH certificate

FEP ROHS certificate

FEP Heat Shrink Tubing Certification

Typical Applications

Electrical and Electronics

Chemical Processing

Laboratory and Analytical Equipment

Medical and Life Science Equipment

Semiconductor and Electronics Manufacturing

Industrial Equipment

Manufacturing and Quality Control

Material Selection

Tube Manufacturing

Expansion Process

Dimensional Inspection

Shrink Performance Testing

Visual Inspection

Packaging

Custom FEP Heat Shrink Tube

For a Fast Quotation

Why Choose Yozonetech

Fluoropolymer Manufacturing Experience

Application-Based Product Selection

Custom Manufacturing

Quality and Documentation

Complete Fluoropolymer Product Range

Certifications and Compliance

FAQ

What is FEP Heat Shrink Tube

What is the main advantage of FEP Heat Shrink Tube

What is FEP Heat Shrink Tube used for

Is FEP Heat Shrink Tube transparent

Is FEP Heat Shrink Tube chemically resistant

How do I choose the correct size

What is the difference between FEP Tube and FEP Heat Shrink Tube

Can FEP Heat Shrink Tube be customized

Can it be used for electrical insulation

What information is required for quotation