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High Quality PVDF Heat Shrink Tube from China Suppliers - Reliable Factory for Durable Protection Solutions
★ Product Features
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◎ Chemical Resistance
Highly resistant to strong acids, alkalis, organic solvents, and oils, with superior stability compared to traditional plastics.
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◎ Broad Temperature Range
Continuous use from -80°C to 175°C; short-term exposure to higher temperatures possible. High thermal deformation temperature prevents cracking after shrinkage.
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◎ Mechanical Strength & Wear Resistance
High tensile strength, abrasion-resistant, and anti-cutting, suitable for mechanical transmission parts or high-friction environments.
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◎ Electrical Insulation
Low dielectric constant and loss, volume resistivity >10¹⁴Ω·cm, ensuring reliable high-frequency signal transmission.
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◎ Flame Retardancy & Safety
Meets UL VW-1 standard, non-dripping during combustion, with high oxygen index for safety-critical applications.
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◎ Transparency & Customization
Available in transparent or semi-transparent options for internal component inspection; customizable colors (e.g., black, red, blue) and sizes for identification.
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◎ Environmental Durability
ROHS compliant, UV-resistant, and maintains structural integrity in harsh conditions.
★ Application
Product Application
◎ Electronics & Semiconductor: Insulation for high-frequency circuits, solder joint protection, cable labeling.
◎ Industrial & Chemical: Chemical pipeline corrosion resistant, anti-wear for mechanical parts, oil-resistant protection.
Product Application
◎ Medical Devices: Medical-grade products meet USP Class VI standards for sterile equipment insulation and biocompatible applications.
◎ Renewable Energy & Aerospace: Protection for lithium battery modules, high-temperature resistant aviation wiring.
★ Characteristics
| Performance | Index | Test Method / Condition | Typical Value |
|---|---|---|---|
| Tensile strength | 34.5 Mpa min | ASTM D 638 | ≥40 Mpa |
| Elongation at break | 150% min | ASTM D 638 | ≥300% |
| Elongation at break after thermal aging | 50% min | 250℃×168h | ≥200% |
| Flame retardancy | VW-1 | UL 224 | Pass |
| Longitudinal shrinkage | ≤10% | ASTM D 2671 | ≤5% |
| Volume resistivity | 1013Ω.cm min | ASTM D 876 | ≥1013Ω.cm min |
| Shrinkage temperature | 125℃~150℃ | —— | |
| Usage temperature | —55℃~175℃ | —— | |
| Cold bending flexibility | No crack | -55℃×4h | No crack |
| Thermal shock | No crack | 275℃×4h | No crack |
| Corrosive | No corrosion | ASTM D 2671 | No corrosion |
| Breakdown | 2500V. 60sec, No breakdown | ASTM D 2671 | No breakdown |
★ Product Specification Sheet
Shrinkage Ratio 2:1
| Size | Inner Diameter Before Contraction | Dimension After Shrinkage | Standard Package (M / Tray) | |
|---|---|---|---|---|
| Internal Diameter | Wall Thickness | |||
| Φ1.2 | ≥1.2 | ≤0.6 | 0.25±0.05 | 200 |
| Φ1.6 | ≥1.6 | ≤0.8 | 0.25±0.05 | 200 |
| Φ2.4 | ≥2.4 | ≤1.2 | 0.25±0.05 | 200 |
| Φ3.2 | ≥3.2 | ≤1.6 | 0.25±0.05 | 200 |
| Φ4.8 | ≥4.8 | ≤2.4 | 0.25±0.05 | 100 |
| Φ6.4 | ≥6.4 | ≤3.2 | 0.30±0.08 | 100 |
| Φ9.5 | ≥9.5 | ≤4.8 | 0.30±0.08 | 100 |
| Φ12.7 | ≥12.7 | ≤6.4 | 0.30±0.08 | 100 |
| Φ19.1 | ≥19.1 | ≤9.5 | 0.43±0.08 | 100 |
| Φ25.4 | ≥25.4 | ≤12.7 | 0.48±0.08 | 50 |
| Φ38.1 | ≥38.1 | ≤19.1 | 0.51±0.08 | 50 |
| Φ50.8 | ≥50.8 | ≤25.4 | 0.58±0.08 | 50 |
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 |
★ Note
⚠
1. The ordinary color is Clear, all other Colors / Specification / Wall Thickness can be made as per customization.
2. High-temperature resistant PVDF Heat Shrink Tube can be made as per customized special sizes and package.
★ Frequently Asked Questions
Q
What is the operating temperature range of the PVDF heat shrink tube?
The PVDF heat shrink tube supports continuous use from -80°C to 175°C. It can also withstand short-term exposure to even higher temperatures, making it suitable for demanding thermal environments in aerospace, automotive, and industrial applications.
Q
What shrinkage ratios are available, and how do I choose the right one?
Two shrinkage ratios are available: 2:1 and 4:1. A 2:1 ratio is suitable for standard cable insulation and bundling, while the 4:1 ratio provides a tighter fit for irregular shapes or connectors with larger diameter differences. Select based on the ratio of the expanded diameter to the target shrunken diameter.
Q
Is PVDF heat shrink tubing compliant with industry safety standards?
Yes. The PVDF heat shrink tube meets the UL VW-1 flame retardancy standard, is ROHS compliant, and medical-grade products satisfy USP Class VI requirements. It is also UV-resistant, making it reliable for both indoor and outdoor safety-critical applications.
Q
Can the PVDF heat shrink tube be customized in color and size?
Yes. The standard color is clear (transparent), but custom colors such as black, red, and blue are available for identification purposes. Custom sizes, wall thicknesses, and packaging options can also be arranged upon request.
Q
What industries commonly use PVDF heat shrink tubing?
PVDF heat shrink tubing is widely used across electronics and semiconductor manufacturing (circuit insulation, cable labeling), industrial and chemical processing (corrosion-resistant pipelines, mechanical wear protection), medical device production (sterile equipment insulation), and renewable energy and aerospace (lithium battery module protection, high-temperature aviation wiring).
Q
What is the minimum tensile strength and elongation at break for this product?
The minimum tensile strength is 34.5 MPa per ASTM D 638, with a typical value exceeding 40 MPa. The elongation at break is a minimum of 150%, with a typical value of 300% or more. After thermal aging at 250°C for 168 hours, the elongation at break retains a minimum of 50%, typically exceeding 200%.