Heat Shrink Type Connector
With 17 years of industry experience, Willele is your trusted partner for high-quality, custom Heat Shrink type Connector. We specialize in creating tailored solutions that ensure precision, reliability, and excellence in every product we deliver.
WILLELE Heat Shrink type Connector
Your go-to choice for superior cable protection. These durable, Heat Shrink type Connector are perfect for insulating and safeguarding wiring in challenging environments. Ensure top performance and safety with WILLELE's Heat Shrink type Connector.
Performance | Testing method | Indexes | Typical |
---|---|---|---|
Physical characteristics | |||
Tensile strength Mpa | GB/T1040 | ≥10.4 | 12.6 |
Elongation at break % | GB/T1040 | ≥200 | 300 |
Tensile strength after thermal ageing Mpa | UL224 158℃ ×168hr | ≥7.3 | 9.8 |
Elongation at break after thermal ageing % | UL224 158℃ ×168hr | ≥100 | 300 |
Thermal shock resistance | UL224 158℃ ×1hr | Non-sticking | PASS |
Cold bending resistance | UL224 -30℃ ×1hr | Non-crack | PASS |
Electrical characteristics | |||
Breakdown strength kv/mm | GB1418 | ≥1.5 | 1.8 |
Pressure resistance | UL224 | 1500V Non-breakdown | PASS |
UL224 | 2000V Non-breakdown | PASS | |
Volume resistivity Ω﹒cm | GB1410 | 1×10¹⁴ | 1×10¹⁵ |
Chemical characteristics | |||
Corrosion resistance | UL224 158℃ ×168hr | PASS | |
Copper invariability | UL224 158℃ ×168hr | PASS | |
Flame retardation | UL224 | VW-1 | PASS |
Hazardous substance | Test standard | Test result | Hazardous substance | Test standard | Test result |
---|---|---|---|---|---|
Cd | EN1122: 2001 METHOD B | <5ppm | As | EPA: METHOD 3052 | <2ppm |
Pb | EPA: METHOD 3050B | <2ppm | Se | EPA: METHOD 3052 | <2ppm |
Sb | EPA: METHOD 3052 | <2ppm | F | EN 14582 METHOD B | N.D. |
Ba | EPA: METHOD 3052 | <2ppm | Cl | EN 14582 METHOD B | N.D. |
Cr | EPA: METHOD 3052 | <2ppm | Br | EN 14582 METHOD B | N.D. |
Hg | EPA: METHOD 3052 | <2ppm | I | EN 14582 METHOD B | N.D. |
Specification | Dimension before shrinking (mm) | Dimension after shrinking (mm) | Standard packaging (m/disc) | Application (mm) | ||
---|---|---|---|---|---|---|
Internal diameter | Wall thickness | Internal diameter | Wall thickness | |||
φ0.8 | 0.9±0.2 | 0.20±0.05 | 0.40±0.1 | 0.32±0.05 | 200 | 0.6~0.8 |
φ1.0 | 1.2±0.3 | 0.20±0.05 | 0.48±0.1 | 0.32±0.05 | 200 | 0.75~1.0 |
φ1.5 | 1.7±0.3 | 0.20±0.05 | 0.73±0.1 | 0.32±0.05 | 200 | 1.1~1.3 |
φ2.0 | 2.2±0.3 | 0.20±0.05 | 0.98±0.1 | 0.32±0.05 | 200 | 1.5~1.8 |
φ2.5 | 2.6±0.4 | 0.25±0.05 | 1.23±0.2 | 0.35±0.05 | 200 | 1.8~2.4 |
φ3.0 | 3.2±0.4 | 0.25±0.05 | 1.45±0.2 | 0.35±0.05 | 200 | 2.0~2.7 |
φ4.0 | 4.2±0.4 | 0.25±0.05 | 1.96±0.2 | 0.35±0.05 | 200 | 2.7~3.6 |
φ5.0 | 5.2±0.4 | 0.25±0.05 | 2.20±0.2 | 0.35±0.05 | 200 | 3.1~4.0 |
φ6.0 | 6.2±0.4 | 0.28±0.15 | 2.96±0.4 | 0.45±0.15 | 200 | 3.7~5.4 |
φ7.0 | 7.2±0.4 | 0.28±0.15 | 3.48±0.3 | 0.45±0.15 | 100 | 3.7~9.3 |
φ8.0 | 8.2±0.5 | 0.28±0.15 | 3.95±0.5 | 0.45±0.15 | 100 | 4.2~7.2 |
φ9.0 | 9.2±0.5 | 0.30±0.15 | 4.40±0.5 | 0.50±0.15 | 100 | 4.7~8.0 |
φ10 | 10.2±0.5 | 0.30±0.15 | 4.90±0.5 | 0.50±0.15 | 100 | 5.2~9.0 |
φ11 | 11.2±0.5 | 0.30±0.15 | 5.40±0.3 | 0.50±0.15 | 100 | 5.7~10 |
φ12 | 12.2±0.5 | 0.30±0.15 | 5.90±0.3 | 0.50±0.15 | 100 | 6.2~11 |
φ13 | 13.2±0.5 | 0.30±0.15 | 6.40±0.3 | 0.50±0.15 | 100 | 6.6~12 |
φ14 | 14.2±0.5 | 0.35±0.15 | 6.90±0.5 | 0.60±0.15 | 100 | 7.3~13 |
φ15 | 15.2±0.5 | 0.35±0.15 | 7.40±0.5 | 0.60±0.15 | 100 | 7.5~14 |
φ16 | 16.2±0.6 | 0.38±0.15 | 7.90±0.5 | 0.60±0.15 | 100 | 8.3~15 |
φ17 | 17.2±0.6 | 0.38±0.15 | 8.40±0.5 | 0.60±0.15 | 100 | 8.8~16 |
φ18 | 18.2±0.6 | 0.40±0.20 | 8.90±0.5 | 0.70±0.20 | 100 | 9.3~17 |
φ20 | 20.2±0.8 | 0.40±0.20 | 9.90±0.5 | 0.70±0.20 | 100 | 11.4~19 |
φ22 | 22.2±0.8 | 0.40±0.20 | 10.90±0.5 | 0.70±0.20 | 100 | 12.4~24 |
φ25 | 25.3±0.8 | 0.45±0.20 | 12.30±1.0 | 0.70±0.20 | 50 | 12.8~29 |
φ30 | 30.2±0.8 | 0.45±0.20 | 14.70±1.0 | 0.70±0.20 | 50 | 16~32 |
φ35 | 35.2±0.8 | 0.50±0.20 | 17.30±1.0 | 0.80±0.20 | 50 | 19~35 |
φ40 | 40.0±1.0 | 0.50±0.20 | 19.80±1.0 | 0.80±0.20 | 50 | 21~39 |
φ50 | 50.0±1.0 | 0.50±0.20 | 24.80±1.0 | 0.80±0.20 | 25 | 26~49 |
φ60 | 60.0±1.0 | 0.65±0.20 | 29.80±1.0 | 0.80±0.20 | 25 | 35~56 |
φ70 | 70.0±1.0 | 0.65±0.20 | 34.00±2.0 | 1.00±0.20 | 25 | 40~70 |
φ80 | 80.0±1.0 | 0.65±0.20 | 39.00±2.0 | 1.00±0.20 | 25 | 45~76 |
φ90 | 90.0±1.0 | 0.65±0.20 | 44.00±2.0 | 1.00±0.20 | 25 | 50~88 |
φ100 | 100.0±2.0 | 0.65±0.20 | 49.00±2.0 | 1.00±0.20 | 25 | 55~98 |
φ120 | 120.0±2.0 | 0.70±0.20 | 59.00±2.0 | 1.20±0.20 | 25 | 65~115 |
φ150 | 150.0±2.0 | 0.70±0.20 | 74.00±2.0 | 1.20±0.20 | 25 | 80~145 |
φ180 | 180.0±2.0 | 0.70±0.20 | 88.00±2.0 | 1.20±0.20 | 25 | 95~175 |
Exclusive Discounts and Services for Heat Shrink type Connector
At WILLELE, we continually strive to collaborate with electricians, mechanical contractors, and other industry professionals by offering exceptional discounts and services for our Heat Shrink type Connector
★ Direct from Factory Pricing – As manufacturers of high-quality Heat Shrink type Connector, purchasing directly from WILLELE ensures you receive the lowest factory prices. While cost is an important factor, our commitment to durability and reliability sets our products apart.
★ Priority Service and Free Planning – Benefit from our priority service, including free planning assistance to optimize your projects. Our efficient process delivers ready-to-use information, saving you time and helping you maximize savings on orders.
★ Free Samples for VIP Customers – We provide free samples to VIP customers, allowing you to test market demand and quality without initial costs. Our commitment to high-quality samples ensures consistency in bulk production and helps secure new orders.
★ Customized Solutions – At WILLELE, we understand that every project is unique. That’s why we offer customized Heat Shrink type Connector solutions tailored to meet your specific needs. From different sizes and colors to specialized materials, we provide personalized options to enhance your project results.

★ Significant Discounts on Bulk Orders – Large volume orders increase productivity and reduce raw material costs. We pass these savings on to you with substantial discounts on bulk purchases, giving you a competitive advantage.
WILLELE Heat Shrink type Connector Production Workflow
Ensuring Precision and Quality at Every Step for Custom Wire Harness Solutions
01
Material Selection
02
Extrusion Process
03
Expansion
04
Cross-Linking
05
Cutting and Sizing
06
Quality Control and Packaging
How to use Heat Shrink Type Connector

1. Cut the heat shrink tubing to the appropriate length as needed.

2. Put the heat shrink tubing onto the data cable.

3. Evenly heat using a hot air gun.

4. Until the heat shrink tubing is fully shrunk.
Why Choose WILLELE ?

- Eco-Friendly Design • Willele heat shrink tubing is halogen-free and non-toxic. It doesn’t release harmful gases when burned, meeting environmental standards and ensuring safety.
- Outstanding Thermal and Electrical Performance • Our heat shrink tubing operates efficiently at temperatures up to 125°C, supports long-term voltage of 600V, and can withstand up to 2500V in the short term, providing reliable insulation and protection.
- Wide Applicability • Suitable for various industries including electronics, electrical, automotive, and telecommunications. It ensures insulation and protection for cables, terminals, and solder joints, making it essential for wire harness manufacturing and high-performance connections.
- Flame Retardant and Durable • With superior resistance to heat, mechanical stress, and corrosion, it is perfect for demanding environments requiring high reliability and safety, offering long-lasting service life.
- Custom Solutions and Quality Assurance • Willele offers tailored OEM/ODM services to customize solutions for your brand. Our proven success stories span across Russia, Brazil, and Europe, guaranteeing premium quality and reliability.
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Application Scenarios



What you need to know about Heat Shrink Tubing
What is Heat Shrink Tubing?
Heat shrink tubing is a specialized plastic tube that contracts radially when exposed to heat, tightly conforming to the shape of the object it covers. This thermoplastic material, also known as electrical shrink wrap or cable shrink sleeve, is primarily used to insulate and protect electrical components from external factors such as moisture, abrasion, and environmental contaminants. Available in various sizes and shrink ratios, typically 2:1 or 3:1, the tubing can reduce to half or even a third of its original diameter when heated. Its versatility and protective properties make it an essential component in electrical setups across multiple industries, including automotive, aerospace, and consumer electronics.
Key Properties of Heat Shrink Tubes
Heat shrinkable tubes with flame-resistant properties are typically made from radiation cross-linked polyolefin, PVDF, PVC, or silicone rubber, with zero halogen options available for low smoke generation. These materials offer a standard shrink ratio of 2:1 and can operate within a temperature range of -55°C to +125°C. The dielectric strength varies depending on the material used, with PVC offering 2,000 V/mil, PVDF providing 900 V/mil, and polyolefin delivering 500 V/mil. Some variants, such as heat-resistant silicone tubes, can withstand temperatures up to 200°C.
Protection Features of Heat Shrink Tubing
Flame-resistant heat shrinkable tubes offer a range of protective features beyond their fire-retardant properties. These tubes provide excellent resistance to acids and alkalis, making them suitable for use in harsh chemical environments. Some variants also offer UV resistance, enhancing their durability in outdoor applications. The tubes provide mechanical protection against cuts and abrasion, ensuring the integrity of enclosed wires and components.For applications requiring additional protection, adhesive-coated versions are available, offering waterproof properties to safeguard against moisture ingress. This combination of chemical resistance, mechanical protection, and optional waterproofing makes flame-resistant heat shrinkable tubes a versatile solution for various industrial and electrical applications.
Safety Standards
Flame-resistant heat shrinkable tubes adhere to rigorous safety standards, ensuring their reliability in critical applications. These products often meet the VW-1 flame rating, which demonstrates their ability to prevent flame spread. Many variants possess self-extinguishing capabilities, enhancing their fire safety profile. For specific types, UL and CSA certifications are available, validating their compliance with industry-recognized safety benchmarks.In specialized sectors like mining, certain flame-resistant heat shrinkable tubes have obtained MSHA approval, certifying their suitability for use in potentially hazardous underground environments. This comprehensive adherence to safety standards underscores the tubes’ importance in maintaining operational safety across various industries.
Materials for Flame-Resistant Tubes
Flame-resistant heat shrinkable tubes are primarily made from advanced polymers engineered for fire safety and durability. The most common materials include crosslinked polyolefin, polyvinyl chloride (PVC), polyvinylidene fluoride (PVDF), and silicone rubber. Crosslinked polyolefin is widely used due to its excellent plasticity, stable physical and chemical properties, and self-extinguishing capabilities. PVDF offers superior flame retardancy and chemical resistance, while silicone rubber provides high flexibility and temperature resistance up to 390°F.
Types of Heat Shrink Tubing Materials
- Polyolefin: The most common and versatile material, offering excellent electrical insulation, chemical resistance, and flexibility. It’s available in shrink ratios up to 4:1 and performs well in temperatures from -55°C to +135°C.
- PVC (Polyvinyl Chloride): Cost-effective and available in many colors, PVC tubing provides good insulation and moisture resistance.
- Fluoropolymers (PTFE, FEP): Highly resistant to chemicals and extreme temperatures, with low friction coefficients. FEP shrinks at lower temperatures than PTFE.
- Elastomeric: Flexible and resistant to abrasion and hazardous liquids, making it ideal for industrial environments.
- PVDF (Polyvinylidene fluoride): Offers high resistance to flame, corrosive chemicals, and industrial fuels
Request a OEM Heat Shrink Tubing
WILLELE is happy to assist you with your OEM and Private Heat Shrink Tubing requirements. We provide solutions that are both high-quality and affordable.