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High Flame Retardancy PFA Heat Shrink Tubing from China Factory - Trusted Suppliers for Durable Protection
◈ Product Features
-200°C to 260°C
UL94 V-0 Flame Retardant
ROHS Compliant
Volume Resistivity >10¹⁸Ω·m
Shrink Ratio 3:1 to 5:1
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◆ Ultra-Wide Temperature Range
• Continuous use: -200°C to 260°C
• Short-term exposure to 300°C instantaneous temperatures possible. High thermal deformation temperature prevents cracking after shrinkage.
• Maintains flexibility at -80°C, avoiding brittleness. -
◆ Superior Chemical Stability
• Resistant to strong acids (e.g., hydrofluoric acid, nitric 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. -
◆ Excellent Electrical Insulation
• Stable dielectric constant (2.1), consistent across 60Hz–60MHz frequency range.
• Volume resistivity >10¹⁸Ω·m, surface resistance >10¹³Ω, arc resistance >165 seconds. No conductive channels after damage. -
◆ Low Friction & Non-Stick Properties
• Dynamic friction coefficient 0.2–0.3, hydrophobic surface (contact angle 114°), preventing media adhesion.
• Ideal for food processing equipment and medical catheters requiring contamination prevention. -
◆ High Transparency & Cleanliness
• Transparent material allows clear inspection of internal components.
• Low refractive index ensures outstanding transparency among plastics. -
◆ Flame Retardancy & Safety
• Meets UL94 V-0 standard, oxygen index >95%, non-combustible in air.
• Suitable for medical devices and aerospace wiring with strict safety requirements. -
◆ Mechanical Strength & Wear Resistance
• High tensile strength, abrasion-resistant, and anti-cutting.
• Shrink ratio 3:1 to 5:1 (model-dependent), tightly conforms to substrates after shrinkage. -
◆ Environmental Durability
• ROHS compliant, UV-resistant, maintains structural integrity in harsh environments.
• Lifespan 5–8 years under normal conditions; slow performance degradation in extreme environments.
◈ Application
Product Application
◆ Semiconductor Manufacturing: Corrosion-resistant sealing for wafer transfer systems and etching equipment pipeline.
◆ Medical Devices: Biocompatible certified products for catheters, sensors, and sterile equipment insulation.
◆ Chemical Anti-Corrosion: Sealing for chemical pipeline interfaces and reactor linings.
Product Application
◆ Aerospace: High-temperature protection for aviation wiring and satellite harness sealing.
◆ Renewable Energy: Protection for lithium battery modules.
◈ Usage Instructions
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◆ Selection Guide
• High-clean environments (e.g., semiconductor) → Choose DuPont 451HP, transparent, low precipitation types.
• High-voltage insulation → Select wall thickness ≥1.0mm, Pressure resistant ≥600V, UL224 certified.
• Frequent bending → Select the thin-walled model with a contraction ratio of 3:1 and excellent flexibility. -
◆ Shrinkage Process
• Use heat gun at 200–230°C for uniform heating.
• Avoid local overheating to prevent melting or deformation.
• Ensure no bubbles or wrinkles after shrinkage. -
◆ Precautions
• Avoid contact with elemental fluorine and molten alkali metals at high temperatures.
• Store away from heat sources and strong oxidizers, keep dry and ventilated.
◈ Product Specification Sheet
| 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
Q
What is the operating temperature range of this PTFE heat shrink tubing?
The tubing supports continuous use from -200°C to 260°C. It can also withstand short-term exposure to instantaneous temperatures of up to 300°C, and maintains full flexibility at -80°C without becoming brittle.
Q
What chemicals is this tubing resistant to?
The tubing is resistant to most strong acids (including hydrofluoric acid and nitric acid), alkalis (such as sodium hydroxide), organic solvents (e.g., acetone and xylene), and various oils. It only reacts with elemental fluorine and molten alkali metals (e.g., sodium, potassium) under high-temperature conditions.
Q
What shrink ratio does this product offer, and how should I apply heat?
The shrink ratio ranges from 3:1 to 5:1 depending on the model. For proper shrinkage, use a heat gun set to 200–230°C and apply heat evenly. Avoid localized overheating, which may cause melting or deformation. After shrinkage, verify there are no bubbles or wrinkles.
Q
Is this tubing suitable for medical and semiconductor applications?
Yes. The tubing is biocompatible certified and suitable for medical catheters, sensors, and sterile equipment insulation. For semiconductor use, we recommend DuPont 451HP or transparent, low-precipitation types that meet cleanroom requirements.
Q
Does this product meet flame retardancy and safety standards?
Yes. The product meets the UL94 V-0 flame retardancy standard, with an oxygen index exceeding 95%, making it non-combustible in air. It is also ROHS compliant and UV-resistant, making it suitable for aerospace wiring, medical devices, and other safety-critical applications.
Q
Are custom sizes and colors available?
Yes. All special sizes and color options are available by customization. Please use the inquiry form below to submit your specific requirements, including dimensions, wall thickness, color, and application details, and our team will provide an accurate quote.
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