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High-Quality PVDF Heat Shrink Tubing - China Suppliers & Factory for Durable Chemical Resistance
★ 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 |
| 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
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1. The ordinary color is Clear, all other Colors / Specification / Wall Thickness can be made as per customization.
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2. High-temperature resistant PVDF Heat Shrink Tube can be made as per customized special sizes and package.
★ Frequently Asked Questions (FAQ)
Q
What is the operating temperature range of PVDF heat shrink tubing?
PVDF heat shrink tubing supports continuous use from -80°C to 175°C. It can also withstand short-term exposure to higher temperatures without cracking or deforming, making it ideal for demanding thermal environments.
Q
Is PVDF heat shrink tubing resistant to chemicals?
Yes. PVDF heat shrink tubing is highly resistant to strong acids, alkalis, organic solvents, and oils. Its chemical stability is significantly superior to traditional plastic tubing, making it suitable for chemical pipelines and industrial environments.
Q
Does PVDF heat shrink tubing meet flame retardancy standards?
Yes. It meets the UL VW-1 flame retardancy standard and does not drip during combustion. It features a high oxygen index, making it suitable for safety-critical applications in electronics, aerospace, and industrial sectors.
Q
What shrinkage ratios are available, and what sizes can be customized?
PVDF heat shrink tubing is available in 2:1 and 4:1 shrinkage ratios. Standard sizes range from Φ1.2 to Φ50.8 (2:1) and 1.5mm to 16.0mm (4:1). Custom sizes, wall thicknesses, colors, and packaging are available upon request.
Q
Is PVDF heat shrink tubing suitable for medical device applications?
Yes. Medical-grade PVDF heat shrink tubing meets USP Class VI standards, making it appropriate for sterile equipment insulation and biocompatible applications in the medical device industry.
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What colors and customization options are available for PVDF heat shrink tubing?
The standard color is clear (transparent). Custom colors including black, red, blue, and others are available. Transparent and semi-transparent options allow for internal component inspection. Wall thickness, size, and packaging can all be customized to meet specific project requirements.