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High-Quality PVDF Heat Shrink Tube Factory in China - Trusted Suppliers for Industrial and Medical Applications
★ 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 | 34.5Mpa min | ASTM D 638 | ≥40Mpa |
| 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
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 temperature range can PVDF heat shrink tubing withstand?
PVDF heat shrink tubing supports continuous use from -80°C to 175°C, with short-term tolerance at even higher temperatures. The high thermal deformation temperature also prevents cracking after shrinkage, making it suitable for demanding thermal environments.
Q
What is the shrinkage ratio available for PVDF heat shrink tubing?
We offer PVDF heat shrink tubing in two standard shrinkage ratios: 2:1 and 4:1. A wide range of sizes is available for each ratio, with inner diameters ranging from Φ1.2mm up to Φ50.8mm (2:1) and from 1.5mm to 16.0mm (4:1).
Q
Is PVDF heat shrink tubing suitable for medical applications?
Yes. Medical-grade PVDF heat shrink tubing meets USP Class VI standards, making it appropriate for sterile equipment insulation and biocompatible applications in medical devices.
Q
Can PVDF heat shrink tubing be customized in color and size?
Yes. The standard color is Clear (transparent), but custom colors such as black, red, and blue are available. Special sizes, wall thicknesses, and packaging can also be produced according to customer requirements.
Q
Does PVDF heat shrink tubing meet flame retardancy standards?
Yes. The tubing meets the UL VW-1 flame retardancy standard (tested per UL 224). It is non-dripping during combustion and has a high oxygen index, making it safe for use in fire-sensitive and safety-critical applications.
Q
What industries commonly use PVDF heat shrink tubing?
PVDF heat shrink tubing is widely used across electronics & semiconductor manufacturing, industrial & chemical processing, medical device production, renewable energy (e.g., lithium battery protection), and aerospace (high-temperature aviation wiring).