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E-mail:ptfetube@yozonetech.cn
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