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ptfe heat shrink tubing
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Customized PTFE Heat Shrink Tube Thin Wall Insulation Sleeve for Medical Catheter 4:1, 2:1 Ratio
Product Overview
Yozonetech PTFE Heat Shrink Tube is a shrinkable fluoropolymer sleeve designed for applications requiring high-temperature resistance, electrical insulation, chemical protection and a conformal fit around components.
Unlike conventional PTFE tubing, PTFE heat shrink tubing is supplied in an expanded state and contracts when heated. During installation, the tubing conforms closely to wires, terminals, connectors, sensors, metal components and other irregular surfaces, creating a compact protective layer.
PTFE provides excellent resistance to many aggressive chemicals, low friction, thermal stability and strong electrical insulation. The combination of PTFE material and heat-shrink construction is useful where conventional heat-shrink materials cannot provide sufficient temperature or chemical resistance.
Why Choose PTFE Heat Shrink Tubing
- High-temperature performance — suitable for demanding thermal environments.
- Excellent electrical insulation — suitable for wires, terminals, electrical components and sensors.
- Chemical resistance — resists a broad range of aggressive chemicals, solvents and process fluids.
- Conformal protection — contracts around the component when heated correctly.
- Low-friction surface — smooth PTFE surface can reduce installation friction.
- Thin-wall construction — provides insulation and protection without excessive bulk.
Product Construction
PTFE Heat Shrink Tube is manufactured from PTFE fluoropolymer and processed into an expanded shrinkable structure.
Basic construction: PTFE fluoropolymer → Expanded tube → Heating → Controlled shrinkage → Conformal protective sleeve.
Final performance depends on PTFE grade, expansion ratio, wall thickness, dimensions and manufacturing process. Straight or continuous lengths can be supplied according to application.
Technical Specifications
PTFE heat shrink tubing is supplied in an expanded state and recovers around a component when heated. The following catalog reference specifications cover 1.7:1 and 4:1 constructions. Confirm the selected construction and acceptance limits for the product supplied by Yozonetech.
Parameter Specification Material PTFE / polytetrafluoroethylene Construction Expanded, heat-activated shrinkable tubing Catalog shrink ratios 1.7:1 and 4:1 Catalog temperature resistance 260°C; finished assembly limits require confirmation Recovery temperature and time Not specified in the supplied catalog; confirm before installation Standard color in catalog Transparent; custom colors available for review Surface Smooth PTFE surface Electrical insulation PTFE insulating sleeve; requirements depend on wall and assembly Chemical resistance Catalog describes resistance to strong acids and alkalis; review actual medium and conditions Printing No product printing in the standard catalog construction Customization Dimensions, wall thickness and colors to customer requirements Supply Roll packaging by size; other supply forms subject to agreement Dimension definitions: D is the supplied tube inner diameter before shrinkage; d is the inner diameter after complete recovery; W is the wall thickness after complete recovery. All dimensions in the following size tables are in millimeters.
The catalog temperature resistance value is distinct from the heating temperature needed for recovery. It does not establish an installation temperature, recovery time, voltage rating or pressure rating.
Technical Specifications
- BENT RADIUS FOR PTFE TUBE
- Physical & Chemical Properties of Fluororplastics
- SPECIFIC GRAVITY
- TECHNICAL NOTE for FLIUOROPOLYMER
Full Specification Table for 1.7 to 1 Shrink Ratio
Size label Expanded ID D Recovered ID d Recovered wall W m per roll 0.5 0.7 ± 0.2 ≤0.4 0.15 ± 0.03 200 1.0 1.0 ± 0.2 ≤0.6 0.15 ± 0.03 200 1.5 1.5 ± 0.2 ≤0.9 0.15 ± 0.03 200 2.0 2.0 ± 0.2 ≤1.3 0.15 ± 0.03 200 2.5 2.5 ± 0.2 ≤1.5 0.2 ± 0.03 200 3.0 3.0 ± 0.2 ≤1.8 0.2 ± 0.03 200 3.5 3.5 ± 0.2 ≤2.0 0.2 ± 0.03 200 4.0 4.0 ± 0.3 ≤2.5 0.2 ± 0.03 200 4.5 4.5 ± 0.3 ≤2.8 0.2 ± 0.03 100 5.0 5.0 ± 0.3 ≤3.0 0.2 ± 0.03 100 6.5 6.5 ± 0.3 ≤3.8 0.2 ± 0.03 100 7.0 7.0 ± 0.3 ≤4.0 0.25 ± 0.03 100 8.0 8.0 ± 0.3 ≤4.8 0.25 ± 0.03 100 9.5 9.0 ± 0.3 ≤5.4 0.35 ± 0.03 100 10.0 10.0 ± 0.3 ≤6.0 0.35 ± 0.03 100 11.0 11.0 ± 0.3 ≤6.8 0.35 ± 0.03 100 12.0 12.0 ± 0.3 ≤7.0 0.38 ± 0.01 100 13.0 13.0 ± 0.3 ≤7.6 0.38 ± 0.01 100 14.0 14.0 ± 0.3 ≤8.2 0.38 ± 0.01 50 15.0 15.0 ± 0.3 ≤8.8 0.38 ± 0.01 50 16.0 16.0 ± 0.3 ≤9.4 0.38 ± 0.01 50 17.0 17.0 ± 0.3 ≤10.0 0.38 ± 0.01 50 18.0 18.0 ± 0.3 ≤10.5 0.6 ± 0.1 50 19.0 19.0 ± 0.3 ≤11.2 0.6 ± 0.1 50 20.0 20.0 ± 0.3 ≤11.8 0.6 ± 0.1 50 21.0 21.0 ± 0.3 ≤12.3 0.6 ± 0.1 50 The size label is the catalog designation, not a substitute for D. The size 0.5 row lists D = 0.7 ± 0.2 mm; the size 9.5 row lists D = 9.0 ± 0.3 mm. These entries are reproduced as printed and should be confirmed when ordering.
Full Specification Table for 4 to 1 Shrink Ratio
Size label Expanded ID Average wall before recovery Recovered ID Fully recovered wall 2.0 2.0 +0.2 0.10 ± 0.05 ≤0.50 0.30 ± 0.05 2.5 2.5 +0.3 0.10 ± 0.05 ≤0.65 0.30 ± 0.05 3.0 3.0 +0.4 0.10 ± 0.05 ≤0.80 0.30 ± 0.05 3.5 3.5 +0.4 0.10 ± 0.05 ≤0.9 0.30 ± 0.05 4.0 4.0 +0.5 0.10 ± 0.05 ≤1.0 0.30 ± 0.05 4.5 4.5 +0.5 0.12 ± 0.05 ≤1.15 0.30 ± 0.05 5.0 5.0 +0.5 0.12 ± 0.05 ≤1.25 0.30 ± 0.05 6.0 6.0 +0.5 0.12 ± 0.05 ≤1.5 0.30 ± 0.05 7.0 7.0 +0.6 0.12 ± 0.05 ≤1.75 0.30 ± 0.05 8.0 8.0 +0.6 0.15 ± 0.05 ≤2.0 0.35 ± 0.05 9.0 9.0 +0.8 0.15 ± 0.05 ≤2.25 0.35 ± 0.05 10.0 10.0 +0.8 0.15 ± 0.05 ≤2.5 0.45 ± 0.05 13.0 13.0 +0.8 0.15 ± 0.05 ≤3.3 0.45 ± 0.05 All dimensions are in mm. Expanded ID entries retain the catalog’s printed “+” notation. A lower tolerance is not stated; confirm the full tolerance before ordering. The 4:1 table does not specify roll length.
Packaging Reference Data
Package Listed net weight kg Dimensions cm Capacity Printed volume m³ Small reel 0.35 Diameter 45; height 5 — 0.71 Large reel 0.5 Diameter 45; height 11 — 1.56 Large carton 1.2 46 × 47 × 47 4 large and 7 small reels 101.62 Medium carton 1.0 46 × 47 × 25 2 large and 4 small reels 54.05 Small carton 0.8 47.5 × 49 × 15 1 large and 2 small reels 34.92 The catalog’s printed volume values and m³ unit are inconsistent with its listed package dimensions. They are retained for traceability only and must not be used for freight calculations. Confirm actual packed dimensions and shipment weights. The listed net weights do not establish gross shipment weights.
Material and Color Information
The supplied catalog identifies PTFE as the base resin. It states that transparent tubing uses pure material without additives, while colored tubing uses the transparent base with the corresponding color masterbatch. Standard color is listed as transparent; other colors, dimensions and wall thicknesses can be produced to customer requirements.
The catalog includes a statement of conformity with European Union RoHS requirements. This statement is not a Yozonetech product certificate. Confirm the resin grade, additive composition, appearance and applicable compliance documentation for the exact supplied product.
The catalog instructs users not to burn the product. Follow the supplied installation instructions and product safety information.
Shrink Ratio and Sizing
The expanded ID must be large enough to pass over the component before heating, while the recovered ID must be small enough to achieve the required finished fit.
Selection principle: Expanded ID > Maximum installation diameter; Recovered ID ≤ Required finished diameter.
For connectors, terminals, splices or irregular profiles, consider the maximum installation diameter rather than only the wire or cable diameter.
Temperature Considerations
PTFE has broad temperature capability, but installation/recovery temperature and continuous operating temperature are different parameters. The tubing must be heated sufficiently to recover, while the finished assembly must remain within the allowable operating conditions of the selected PTFE grade. Final operating temperature should be confirmed against the specific product datasheet.
Electrical Insulation
PTFE Heat Shrink Tube is suitable where shrinkable installation and electrical insulation are both required. Typical uses include wire insulation, terminal insulation, connector protection, sensor protection, cable component protection and high-temperature wiring. For critical electrical systems, confirm voltage, dielectric requirements, wall thickness and operating conditions for the exact construction.
Chemical and Environmental Protection
PTFE provides strong resistance to many chemicals and solvents. After recovery, the sleeve can closely cover a component and help protect the covered area from environmental exposure. Compatibility should be evaluated against the specific chemical, concentration, temperature and exposure time.
PTFE Heat Shrink Tube vs Standard PTFE Tube
Standard PTFE Tube maintains its original dimensions and is often selected for fluid transfer or general tubing. PTFE Heat Shrink Tube is manufactured in an expanded state and contracts around a component when heated, making it particularly useful for insulation, covering and close-fitting protection.
PTFE Heat Shrink Tube vs Other Heat Shrink Materials
PTFE should not be selected simply because it is a fluoropolymer. Material selection depends on temperature, chemical exposure, shrink performance, flexibility, electrical requirements and cost. Yozonetech can evaluate PTFE, FEP and other fluoropolymer shrink tubing according to the application.
Certifications
PTFE tube FDA certificate
PTFE tube REACH certificate
PTFE tube RoHS certificate
Heat shrink tubing manufacturers Certification: UL, CE, FDA, RoHS, REACH.
- Yozonetech PTFE FDA certificate 2020-2022)
- Yozonetech PTFE RoHS certificate
- Yozonetech PTFE REACH certificate
- Yozonetech MSDS PTFE dongyue
- Yozonetech PFOA Test Certificate
Typical Applications
- Electrical & Electronics: wire insulation, terminal protection, connector insulation, sensor assemblies.
- Automotive: engine-compartment wiring, sensor protection, electrical connectors, high-temperature wiring.
- Chemical Processing: component protection, instrumentation and corrosive-environment insulation.
- Semiconductor & Electronics Equipment: high-temperature electrical protection and instrumentation assemblies.
- Industrial Equipment: cable protection, electrical component insulation and protective sleeves.
- Laboratory & Analytical Equipment: sensor protection, wire insulation and chemical-resistant component sleeves.
Manufacturing and Quality Control
- Material Preparation — Select PTFE material according to product grade and application.
- Tube Forming — Produce the base PTFE tubing with controlled dimensions and surface quality.
- Expansion Processing — Controlled expansion creates the shrinkable structure.
- Dimensional Control — Check expanded dimensions and wall thickness against the agreed specification.
- Shrink Performance Inspection — Selected products can be evaluated for recovery behavior and dimensional stability after controlled heating.
- Surface Inspection — Inspect for visible defects, contamination and surface abnormalities.
- Cutting & Packaging — Supply controlled lengths or continuous form with suitable protective packaging.
Custom PTFE Heat Shrink Tube
Yozonetech supports custom PTFE heat shrink tubing for OEM and industrial applications. Parameters can include expanded ID, recovered ID, wall thickness, shrink ratio, length, color, supply form, special dimensions, material grade, OEM labeling and packaging.
For a fast quotation, provide: Expanded ID × Recovered ID × Wall Thickness × Length × Quantity. If available, also provide component diameter, installation method, operating temperature, recovery temperature, voltage, chemical exposure, application, certification requirements, drawing or sample.
Why Choose Yozonetech
Manufacturer Direct — Direct manufacturing supply for fluoropolymer tubing and related products.
Fluoropolymer Range — PTFE, FEP, PFA, ETFE and PVDF tubing plus heat-shrink solutions.
Application-Based Specification — Selection based on dimensions, temperature, electrical requirements, chemical exposure and installation conditions.
Custom Manufacturing — Custom dimensions and OEM production.
Quality & Documentation — Applicable documentation according to material grade, product and market.
Integrated Solutions — PTFE Heat Shrink Tube can be supplied alongside PTFE Tube, FEP Tube, PFA Tube, PTFE Braided Hose and other fluoropolymer products.
Certifications and Compliance
Depending on exact material grade, product construction and application, documentation may include FDA-related documentation for applicable grades, RoHS, REACH, ISO 9001, IATF 16949, USP Class VI where applicable and customer-specific technical documentation. Compliance is product- and grade-specific and should be confirmed for the exact product supplied.
Frequently Asked Questions
What is PTFE heat shrink tubing
It is an expanded PTFE sleeve that contracts when heated to form a close-fitting protective or insulating layer.
What is it used for
Electrical insulation, wire and terminal protection, sensor protection, component covering and demanding chemical/temperature environments.
Is it suitable for high-temperature applications
The catalog lists temperature resistance of 260°C. This is not the recovery heating temperature. Confirm allowable service conditions and recovery instructions for the selected construction.
How is it different from PTFE tubing
Standard PTFE tubing keeps its original dimensions; heat shrink tubing is expanded and contracts when heated.
How do I select the size
Use the 1.7:1 or 4:1 table to check expanded ID, fully recovered ID and recovered wall thickness. The expanded ID must pass over the component; the recovered dimensions must provide the required fit.
Can it be customized
Yes, custom dimensions and OEM constructions can be evaluated.
Is it electrically insulating
Yes. PTFE has excellent electrical insulation properties.
Can it resist chemicals
PTFE resists many chemicals and solvents; final compatibility should be checked for the exact conditions.
Can it be used for sealing
It can provide close-fitting coverage, but sealing performance depends on assembly design, recovered dimensions, temperature and environment.
What information is needed for quotation
Expanded ID, recovered diameter, wall thickness, length, quantity, component dimensions, temperature, electrical requirements, application and certification requirements.
Request a PTFE Heat Shrink Tube Quote
Need a PTFE Heat Shrink Tube for a specific assembly? Send us your dimensions and application conditions.
Electrical Insulation | High-Temperature Protection | Chemical Protection | Component Covering | OEM Assemblies
Email: ptfetube@yozonetech.cn
Website: chinaptfetube.com
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PTFE Heat Shrinking Tube
YOZONE can provide you PTFE precise machined part customized OEM, PTFE film customized OEM, PTFE molded sheet Plate and PTFE molded tube.
PTFE heat shrink tube is a type of tube that shrinks when heated. It is made from a fluoropolymer known for its non-stick properties and resistance to chemicals, heat, and electrical insulation.
What are the main uses of PTFE heat shrink tube?
PTFE heat shrink tubing is commonly used in:
1.Electrical insulation
2.Wire bundling
3.Chemical resistance applications
4.High-temperature environments
5.Aerospace and automotive industries
6.Medical devices
What is the difference between PTFE heat shrink tube and other types like PVC or polyolefin?
Feature PTFE Heat Shrink tube PVC Heat Shrink tube Polyolefin Heat Shrink tube Temperature Range Up to 260°C Up to 85°C Up to 125°C Chemical Resistance Excellent Moderate Good Electrical Insulation Excellent Good Good Flexibility Moderate High High Cost Higher Lower Moderate What is the temperature range of PTFE heat shrink tube?
PTFE heat shrink tube can withstand temperatures ranging from -200°C to +260°C.
How stable is PTFE heat shrink tube chemically?
PTFE heat shrink tube exhibits excellent chemical stability, being resistant to a wide range of acids, bases, and organic solvents. It does not react with most chemicals.
In which industries is PTFE heat shrink tube used?
PTFE heat shrink tube is utilized in various industries, including:
1.Aerospace
2.Automotive
3.Electronics
4.Medical
5.Chemical processing
6.Telecommunications
What are the specifications and size selection standards for PTFE heat shrink tube?
When selecting PTFE heat shrink tube, consider the following specifications:
1.Diameter: Choose based on the size of the wire or component it will cover.
2.Shrink Ratio: Common shrink ratios are 2:1 or 4:1.
3.Wall Thickness: Thicker walls offer better insulation and protection.
4.Length: Available in various lengths depending on application needs.
Example Table for Specifications
Specification Standard Options Diameter 1mm - 50mm Shrink Ratio 2:1, 4:1 Wall Thickness 0.1mm - 0.5mm Length 1m, 5m, 10m Why Choose us
At YOZONE, heat shrinkable tubing manufacturer take pride in our commitment to excellence and strive to exceed customer expectations. As a well-known dual wall heat shrink tubing suppliers factory, we are dedicated to providing reliable and durable products that meet the diverse needs of our valued customers. Trust YOZONE for all your rubber tube requirements.