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High-End PTFE Heat Shrink Tubing Suppliers in China - Advanced Factory Manufacturing Solutions
Product Features
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Broad Temperature Range
Continuous use from -80°C to 260°C; short-term exposure to higher temperatures possible. Shrinkage requires >300°C for tight encapsulation.
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Chemical Stability
Resistant to strong acids, alkalis, organic solvents, and oils; only elemental fluorine and molten alkali metals may affect it at high temperatures.
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Electrical Insulation
Stable dielectric constant (2.1), surface resistance >10¹³Ω, volume resistance >10¹⁸Ω·m, ensuring reliable high-frequency signal transmission.
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Low Friction & Non-Stick
Dynamic friction coefficient 0.2–0.3, hydrophobic surface (contact angle 114°), preventing media adhesion.
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Flame Retardancy & Safety
Meets UL94 V-0 standard, oxygen index >95%, non-combustible in air.
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Mechanical Performance
Shrink ratio 1.7:1 or 4:1 (model-dependent), tightly conforms to substrates after shrinkage, providing stress relief and sealing.
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Environmental Durability
ROHS compliant; lifespan 5–8 years in normal conditions, maintains integrity in harsh environments.
Application
Product Application
◎ Electronics: Insulation for high-frequency circuits, solder joint protection, cable labeling.
◎ Industrial: Chemical pipeline anti-corrosion, anti-wear for mechanical transmission parts.
Product Application
◎ Medical: Biocompatible certified products for sterile equipment.
◎ Aerospace: High-temperature protection for aviation wiring.
Characteristics
| Project | Test Procedure | Parameter |
|---|---|---|
| Proportion (g/cm³) | ASTM D792 | 2.16 |
| Tensile Strength (MPa) | ASTM D638 | 24.5 |
| Ultimate Elongation (%) | ASTM D638 | 350 |
| Bending Coefficient (MPa) | ASTM D790 | 490 |
| Impact Strength | ASTM D256 +23°C–54°C J/m | 107 |
| Hardness (A) | ASTM D2240 | 75 |
| Friction Coefficient | — | 0.1 |
| Melting Degree (°C) | — | 327 |
| Actual Operating Temperature Range (°C) | — | 260 |
| Fire Retardant Grade | UL-224 | VW-1 |
| Dielectric Constant (10³–10⁶ Hz) | ASTM D150 | 2.1 |
| Dissipation Factor (10⁶ Hz) | ASTM D150 | 0.0002 |
| Arc Coefficient (S) | ASTM D495 | >300 |
| Volume Resistivity (Ω·cm) | ASTM D257 | >10¹⁸ |
| Weather Resistant | (2000h) | No crack |
| Solvent Resistant | ASTM D543 | Excellent |
| Chemical Resistant | ASTM D543 | Excellent |
| Breakdown Strength | ASTM D543 | 25 KV/MM |
Product Specification Sheet
Shrinkage Ratio 1.7:1
| Specification | Inner Diameter (mm) | Wall Thickness (mm) — Ordinary Type | Wall Thickness (mm) — Thicker Type | Packing | Tube Type | |||
|---|---|---|---|---|---|---|---|---|
| Before Contraction | After Contraction | Before Contraction | After Contraction | Before Contraction | After Contraction | |||
| Ф0.5 | 0.7±0.2 | ≤0.35 | 0.10±0.05 | 0.15±0.05 | 0.12±0.05 | 0.18±0.05 | 200M | Round Tube |
| Ф0.6 | 0.8±0.2 | ≤0.35 | 0.10±0.05 | 0.15±0.05 | 0.12±0.05 | 0.18±0.05 | 200M | Round Tube |
| Ф0.8 | 1.0±0.2 | ≤0.47 | 0.10±0.05 | 0.15±0.05 | 0.12±0.05 | 0.18±0.05 | 200M | Round Tube |
| Ф1.0 | 1.2±0.2 | ≤0.6 | 0.10±0.05 | 0.15±0.05 | 0.12±0.05 | 0.18±0.05 | 200M | Round Tube |
| Ф1.5 | 1.7±0.2 | ≤0.9 | 0.10±0.05 | 0.15±0.05 | 0.19±0.05 | 0.3±0.05 | 200M | Round Tube |
| Ф2.0 | 2.2±0.2 | ≤1.25 | 0.10±0.05 | 0.15±0.05 | 0.19±0.05 | 0.3±0.05 | 200M | Round Tube |
| Ф2.5 | 2.7±0.2 | ≤1.55 | 0.10±0.05 | 0.15±0.05 | 0.19±0.05 | 0.3±0.05 | 200M | Round Tube |
| Ф3.0 | 3.2±0.2 | ≤1.75 | 0.15±0.05 | 0.2±0.05 | 0.19±0.05 | 0.3±0.05 | 200M | Round Tube |
| Ф3.5 | 3.7±0.2 | ≤2.06 | 0.15±0.05 | 0.2±0.05 | 0.19±0.05 | 0.3±0.05 | 200M | Round Tube |
| Ф4.0 | 4.3±0.3 | ≤2.5 | 0.15±0.05 | 0.2±0.05 | 0.19±0.05 | 0.3±0.05 | 200M | Round Tube |
| Ф4.5 | 4.8±0.3 | ≤2.75 | 0.15±0.05 | 0.2±0.05 | 0.19±0.05 | 0.3±0.05 | 200M | Round Tube |
| Ф5.0 | 5.3±0.3 | ≤3.05 | 0.15±0.05 | 0.2±0.05 | 0.19±0.05 | 0.3±0.05 | 200M | Round Tube |
| Ф5.5 | 5.8±0.3 | ≤3.23 | 0.15±0.05 | 0.2±0.05 | 0.22±0.05 | 0.36±0.05 | 100M | Round Tube |
| Ф6.0 | 6.3±0.3 | ≤3.70 | 0.15±0.05 | 0.2±0.05 | 0.22±0.05 | 0.36±0.05 | 100M | Round Tube |
| Ф6.5 | 6.8±0.3 | ≤3.82 | 0.15±0.05 | 0.2±0.05 | 0.22±0.05 | 0.36±0.05 | 100M | Round Tube |
| Ф7.0 | 7.3±0.3 | ≤4.1 | 0.15±0.05 | 0.2±0.05 | 0.22±0.05 | 0.36±0.05 | 100M | Flat Tube |
| Ф7.5 | 7.8±0.3 | ≤4.4 | 0.15±0.05 | 0.23±0.05 | 0.22±0.05 | 0.36±0.05 | 100M | Flat Tube |
| Ф8.0 | 8.3±0.3 | ≤4.8 | 0.15±0.05 | 0.23±0.05 | 0.22±0.05 | 0.36±0.05 | 100M | Flat Tube |
| Ф9.0 | 9.3±0.3 | ≤5.3 | 0.15±0.05 | 0.23±0.05 | 0.22±0.05 | 0.36±0.05 | 100M | Flat Tube |
| Ф10.0 | 10.5±0.5 | ≤5.88 | 0.15±0.05 | 0.23±0.05 | 0.22±0.05 | 0.36±0.05 | 100M | Flat Tube |
| Ф11.0 | 11.5±0.5 | ≤6.8 | 0.15±0.05 | 0.23±0.05 | 0.22±0.05 | 0.36±0.05 | 100M | Flat Tube |
| Ф12.0 | 12.5±0.5 | ≤7.2 | 0.15±0.05 | 0.23±0.05 | 0.22±0.05 | 0.36±0.05 | 100M | Flat Tube |
| Ф14.0 | 14.5±0.5 | ≤8.3 | 0.15±0.05 | 0.27±0.05 | 0.22±0.05 | 0.36±0.05 | 100M | Flat Tube |
| Ф15.0 | 15.5±0.5 | ≤8.9 | 0.15±0.05 | 0.27±0.05 | 0.22±0.05 | 0.36±0.05 | 100M | Flat Tube |
| Ф16.0 | 17.0±1.0 | ≤9.5 | 0.15±0.05 | 0.27±0.05 | 0.22±0.05 | 0.36±0.05 | 100M | Flat Tube |
| Ф17.0 | 18.0±1.0 | ≤10.0 | 0.25±0.1 | 0.35±0.1 | — | — | 100M | Flat Tube |
| Ф18.0 | 19.0±1.0 | ≤10.5 | 0.25±0.1 | 0.35±0.1 | — | — | 100M | Flat Tube |
| Ф19.0 | 20.0±1.0 | ≤11.2 | 0.25±0.1 | 0.4±0.1 | — | — | 100M | Flat Tube |
| Ф20.0 | 21.0±1.0 | ≤11.8 | 0.25±0.1 | 0.4±0.1 | — | — | 100M | Flat Tube |
| Ф25.0 | 26.0±1.0 | ≤14.7 | 0.25±0.1 | 0.4±0.1 | — | — | 50M | Flat Tube |
| Ф30.0 | 31.0±1.0 | ≤17.6 | 0.35±0.2 | 0.6±0.2 | — | — | 50M | Flat Tube |
| Ф35.0 | 37.0±2.0 | ≤20.5 | 0.55±0.2 | 1.0±0.2 | — | — | 50M | Flat Tube |
| Ф40.0 | 42.0±2.0 | ≤23.5 | 0.55±0.2 | 1.0±0.2 | — | — | 50M | Flat Tube |
Shrinkage Ratio 4:1
| Specification | Inner Diameter (mm) | Wall Thickness (mm) | Packing | Tube Type | ||
|---|---|---|---|---|---|---|
| Before Contraction | After Contraction | Before Contraction | After Contraction | |||
| 1.5 | 1.8±0.4 | ≤0.38 | 0.08±0.05 | 0.25±0.05 | 200M/Tray | Round Tube |
| 2.0 | 2.4±0.4 | ≤0.50 | 0.08±0.05 | 0.25±0.05 | 200M/Tray | Round Tube |
| 2.5 | 2.9±0.4 | ≤0.63 | 0.08±0.05 | 0.25±0.05 | 200M/Tray | Round Tube |
| 3.0 | 3.4±0.4 | ≤0.75 | 0.08±0.05 | 0.25±0.05 | 200M/Tray | Round Tube |
| 3.5 | 3.9±0.4 | ≤0.88 | 0.08±0.05 | 0.25±0.05 | 200M/Tray | Round Tube |
| 4.0 | 4.4±0.4 | ≤1.0 | 0.08±0.05 | 0.25±0.05 | 200M/Tray | Round Tube |
| 4.5 | 4.8±0.4 | ≤1.10 | 0.08±0.05 | 0.30±0.05 | 200M/Tray | Round Tube |
| 4.8 | 5.3±0.4 | ≤1.20 | 0.08±0.05 | 0.30±0.05 | 200M/Tray | Round Tube |
| 5.0 | 5.5±0.5 | ≤1.25 | 0.08±0.05 | 0.30±0.05 | 100M/Tray | Round Tube |
| 6.0 | 6.5±0.5 | ≤1.50 | 0.10±0.05 | 0.30±0.05 | 100M/Tray | Round Tube |
| 6.5 | 7.0±0.5 | ≤1.63 | 0.10±0.05 | 0.30±0.05 | 100M/Tray | Flat Tube |
| 7.0 | 7.5±0.5 | ≤1.75 | 0.10±0.05 | 0.30±0.05 | 100M/Tray | Flat Tube |
| 8.0 | 8.5±0.5 | ≤2.0 | 0.10±0.05 | 0.30±0.05 | 100M/Tray | Flat Tube |
| 9.0 | 9.5±0.5 | ≤2.3 | 0.10±0.05 | 0.30±0.05 | 100M/Tray | Flat Tube |
| 9.5 | 10.0±0.5 | ≤2.4 | 0.10±0.05 | 0.30±0.05 | 100M/Tray | Flat Tube |
| 10.0 | 10.3±0.5 | ≤2.5 | 0.10±0.05 | 0.30±0.05 | 100M/Tray | Flat Tube |
| 11.0 | 12.0±1 | ≤2.75 | 0.10±0.05 | 0.30±0.05 | 100M/Tray | Flat Tube |
| 12.0 | 13.0±1 | ≤3.0 | 0.10±0.05 | 0.30±0.05 | 100M/Tray | Flat Tube |
| 14.0 | 14.0±1 | ≤3.5 | 0.10±0.05 | 0.35±0.05 | 100M/Tray | Flat Tube |
| 16.0 | 15.0±1 | ≤4.0 | 0.10±0.05 | 0.35±0.05 | 100M/Tray | Flat Tube |
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Frequently Asked Questions
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What is the operating temperature range of this PTFE heat shrink tubing? +The tubing supports continuous use from -80°C to 260°C. Short-term exposure to even higher temperatures is possible. Full shrinkage requires temperatures above 300°C to achieve tight encapsulation around the substrate.
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What shrink ratios are available, and how do I choose the right one? +Two shrink ratios are available: 1.7:1 and 4:1. The 1.7:1 ratio is suitable for applications where only a small reduction in diameter is needed, while the 4:1 ratio is ideal for covering irregular shapes or substrates with larger diameter variations. Choose based on the before- and after-contraction inner diameter requirements listed in the specification sheet.
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Is this PTFE tubing resistant to chemicals and solvents? +Yes. The tubing exhibits excellent resistance to strong acids, alkalis, organic solvents, and oils. Only elemental fluorine and molten alkali metals can affect it, and only at elevated temperatures. It is rated "Excellent" under ASTM D543 for both solvent and chemical resistance.
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What industries and applications is this product suitable for? +This PTFE heat shrink tubing is used across a wide range of industries: electronics (high-frequency circuit insulation, solder joint protection, cable labeling), industrial (chemical pipeline anti-corrosion, mechanical transmission protection), medical (biocompatible certified equipment), and aerospace (high-temperature protection for aviation wiring).
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Does this product meet flame retardancy and environmental compliance standards? +Yes. The tubing meets UL94 V-0 and UL-224 VW-1 flame retardancy standards, with an oxygen index greater than 95%, making it non-combustible in air. It is also ROHS compliant, ensuring it meets international environmental requirements for hazardous substances.
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What is the expected lifespan and how should the tubing be stored? +Under normal operating conditions, the tubing has a lifespan of 5–8 years and maintains its structural integrity in harsh environments. It passed 2000-hour weather resistance testing with no cracking. For storage, keep the tubing in a clean, dry environment away from direct sunlight and extreme temperatures to maximize its shelf life.