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High-End PTFE Heat Shrink Tubing from China - Reliable Suppliers & Factory for Extreme Environment Protection
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 (10³–10⁶Hz) | ASTM D150 | 2.1 |
| Dissipation Factor (10⁶Hz) | 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 | 25KV/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
What temperature range can this PTFE heat shrink tubing withstand?
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The PTFE heat shrink tubing supports continuous use from -80°C to 260°C. Short-term exposure to higher temperatures is possible. Shrinkage is initiated above 300°C for tight encapsulation.
What shrink ratios are available for this product?
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Two shrink ratios are available: 1.7:1 and 4:1, depending on the model selected. Both are detailed in the product specification sheets above with full inner diameter and wall thickness data.
Is this PTFE tubing resistant to chemicals and solvents?
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Yes. The tubing is highly resistant to strong acids, alkalis, organic solvents, and oils. Only elemental fluorine and molten alkali metals may affect it under high-temperature conditions.
What industries are suitable for this PTFE heat shrink tubing?
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This product is widely used in Electronics (circuit insulation, cable labeling), Industrial (anti-corrosion pipelines, mechanical wear protection), Medical (sterile biocompatible equipment), and Aerospace (high-temperature aviation wiring protection).
Does this product meet fire safety and environmental standards?
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Yes. The tubing meets UL94 V-0 flame retardancy standard with an oxygen index greater than 95%, making it non-combustible in air. It is also ROHS compliant, ensuring it is free from hazardous substances.
What is the expected lifespan of this PTFE heat shrink tubing?
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Under normal operating conditions, the lifespan is 5–8 years. The tubing maintains structural integrity even in harsh environments, providing long-term stress relief, sealing, and insulation performance.