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High-Temperature Resistant FEP Heat Shrink Tube Factory in China - Trusted Suppliers for Quality Protection Solutions
⚙️ Product Features
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◎ Ultra-Wide Temperature Range
• Continuous use from -80°C to 200°C; short-term exposure to higher temperatures (e.g., 300°C instantaneous contact) possible.
• High thermal deformation temperature prevents cracking after shrinkage, suitable for high-temperature welding joint protection and extreme temperature cycling. -
◎ Superior Chemical Stability
• Resistant to strong acids (e.g., sulfuric acid, hydrochloric acid), alkalis (e.g., sodium hydroxide), organic solvents (e.g., acetone, xylene), and oils.
• Reacts only with elemental fluorine and molten alkali metals (e.g., sodium, potassium) at high temperatures, with chemical inertness surpassing traditional plastics. -
◎ Excellent Electrical Insulation
• Stable dielectric constant (2.1), consistent across 60Hz–60MHz frequency range, ensuring reliable high-frequency signal transmission.
• Volume resistivity >10¹⁸Ω·m, surface resistance >10¹³Ω, arc resistance >165 seconds, with no conductive channel formation after damage. -
◎ Low Friction & Non-Stick Properties
• Dynamic friction coefficient 0.2–0.3, hydrophobic surface (contact angle 114°), preventing media adhesion and facilitating cleaning.
• Non-stick characteristics make it suitable for coating transmission rollers and food processing equipment requiring contamination prevention. -
◎ High Transparency & Visibility
• Transparent material allows clear inspection of internal components, aiding in solder point verification, circuit identification, and medium flow monitoring.
• Low refractive index ensures outstanding transparency among plastics, ideal for applications requiring aesthetic appearance. -
◎ Flame Retardancy & Safety
• Meets UL94 V-0 standard, oxygen index >95%, non-combustible in air, and produces no dripping during combustion.
• Suitable for safety-critical applications, such as medical devices and aerospace wiring. -
◎ Mechanical Strength & Wear Resistance
• High tensile strength, abrasion-resistant, and anti-cutting, suitable for mechanical transmission parts or high-friction environments.
• Shrink ratio 1.25:1 or 1.3:1 (model-dependent), tightly conforms to substrates after shrinkage, providing stress relief and sealing. -
◎ Environmental Durability
• ROHS compliant, UV-resistant, and maintains structural integrity in harsh environments.
• Lifespan 5–8 years in normal conditions, with slow performance degradation in extreme environments (e.g., chemical corrosion, high temperature).
📋 Characteristics
| Parameter | |
| Color | Transparent, Black, etc. |
| Melt Temperature ℃ | 260 – 270 |
| Operating Temperature ℃ | -80 – 200 |
| Shrinkage Temperature ℃ | 200 – 250 |
| Melt Index g/10min | 4 – 12 |
| Proportion | 2.15 |
| Corrosion Effect on Copper Surface | Non Corrosive |
| Antibacterial & Anti-Corrosion Property | Good |
| Flexibility | Good |
| Tensile Strength MPa (kgf/cm) | ＞21.0 |
| Decomposition Temperature ℃ | 360 |
| Surface | Glossy surface, no roughening and pocking mark, no impurities inside and outside of the tube |
| Flame Resistance | VW-0 |
| Resistibility | Abrasion resistant, Acid-base corrosion resistant, Water-proof, Mold-proof, Corona discharge resistant, Resistant to industrial solvents, Resistant to external mechanical damage |
| Environment Protection | Harmless for Body and Environment |
🔬 Application
Product Application
◎ Electronics & Semiconductor: Insulation for high-frequency circuits, solder joint protection, cable labeling, suitable for 5G communication equipment and high-frequency signal transmission.
◎ Industrial & Chemical: Chemical pipeline anti-corrosion, anti-wear for mechanical parts, oil-resistant protection, e.g., sealing reaction vessel pipelines in chemical plants.
Product Application
◎ Medical Devices: Biocompatible certified products for catheters, sensors, and sterile equipment insulation, meeting USP Class VI standards.
◎ Aerospace: High-temperature protection for aviation wiring, sealing components in extreme temperature environments, e.g., satellite harness protection.
◎ Renewable Energy: Protection for lithium battery modules, preventing electrolyte leakage and external impact.
📐 Product Specification Sheet
Specification Sheet 01
| Inner Diameter Before Contraction (MM) | Wall Thickness Before Contraction (MM) | Inner Diameter After Contraction (MM) | Wall Thickness After Contraction (MM) |
| 3.0±0.2 | 0.15±0.03 | 2.3 | 0.20±0.03 |
| 3.5±0.2 | 0.15±0.03 | 2.7 | 0.20±0.03 |
| 4.0±0.2 | 0.15±0.03 | 3.1 | 0.20±0.03 |
| 4.5±0.2 | 0.15±0.03 | 3.4 | 0.20±0.03 |
| 5.0±0.2 | 0.15±0.03 | 3.8 | 0.20±0.03 |
| 6.0±0.3 | 0.15±0.03 | 4.6 | 0.20±0.03 |
| 7.0±0.3 | 0.15±0.03 | 5.4 | 0.20±0.03 |
| 8.0±0.3 | 0.15±0.03 | 6.2 | 0.20±0.03 |
| 9.0±0.3 | 0.15±0.03 | 6.9 | 0.20±0.03 |
| 10.0±0.3 | 0.15±0.03 | 7.7 | 0.20±0.03 |
| 11.0±0.3 | 0.2±0.05 | 8.5 | 0.25±0.05 |
| 14.0±0.3 | 0.2±0.05 | 10.8 | 0.25±0.05 |
📌 Note
⚠️
All special sizes and colors orders are available by customization.
This item can reach flame retardancy level of V0.
This item can reach flame retardancy level of V0.
❓ Frequently Asked Questions
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💬 What temperature range can FEP heat shrink tubing withstand?FEP heat shrink tubing supports continuous operation from -80°C to 200°C. It can also withstand short-term exposure to higher temperatures, such as 300°C instantaneous contact, making it ideal for extreme temperature cycling and high-temperature welding joint protection.
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💬 Is FEP heat shrink tubing chemically resistant?Yes. FEP tubing offers superior chemical stability, resisting strong acids (sulfuric acid, hydrochloric acid), alkalis (sodium hydroxide), organic solvents (acetone, xylene), and oils. It only reacts with elemental fluorine and molten alkali metals at high temperatures.
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💬 What is the shrink ratio of this FEP tubing?The shrink ratio is 1.25:1 or 1.3:1 depending on the model. The tubing tightly conforms to substrates after shrinkage, providing effective stress relief and sealing. Shrinkage occurs at temperatures between 200°C and 250°C.
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💬 Is FEP heat shrink tubing suitable for medical and aerospace applications?Absolutely. FEP tubing meets biocompatibility requirements (USP Class VI) for use in catheters, sensors, and sterile medical equipment. For aerospace, it provides high-temperature protection for aviation wiring and sealing in extreme environments such as satellite harness protection.
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💬 What flame retardancy standard does this product meet?This FEP heat shrink tubing meets the UL94 V-0 standard with an oxygen index greater than 95%. It is non-combustible in air and produces no dripping during combustion, making it suitable for safety-critical applications in medical devices and aerospace wiring.
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💬 Can I order custom sizes or colors?Yes. All special sizes and colors are available by customization. Standard available colors include transparent and black. Please contact us with your specific requirements, including inner diameter, wall thickness, length, and color, to receive an accurate quote.