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High-End PTFE Heat Shrink Tubing from China Suppliers and Factory - Exceptional Chemical Inertness for Extreme Environments
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℃–54℃ J/m | 107 |
| Hardness (A) | ASTM D2240 | 75 |
| Friction Coefficient | -- | 0.1 |
| Melting Degree (℃) | -- | 327 |
| Actual Operating Temperature Range (℃) | -- | 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
PTFE heat shrink tubing supports continuous use from -80°C to 260°C. Short-term exposure to higher temperatures is possible. Shrinkage typically requires temperatures above 300°C for tight encapsulation around substrates.
Two shrink ratios are available: 1.7:1 and 4:1, depending on the model. The 1.7:1 ratio is suitable for standard applications, while the 4:1 ratio provides greater coverage flexibility for irregular or larger substrates.
Yes. PTFE heat shrink tubing is highly resistant to strong acids, alkalis, organic solvents, and oils. Only elemental fluorine and molten alkali metals can affect it under high-temperature conditions.
Yes. Products with biocompatible certification are available for use with sterile medical equipment. For aerospace applications, the tubing provides reliable high-temperature protection for aviation wiring and components.
Yes. The tubing meets the UL94 V-0 flame retardancy standard with an oxygen index greater than 95%, making it non-combustible in air. It also carries a VW-1 fire retardant grade rating per UL-224.
Under normal operating conditions, the expected lifespan is 5–8 years. The product is fully ROHS compliant and maintains structural integrity in harsh environments, including UV exposure (no cracking after 2,000 hours) and chemical immersion.