Heat Shrink
Heat Shrink Tubing
Insulation, sealing, strain relief and terminal protection.
Heat Shrink
Heat Shrink Tubing
Heat shrink tubing for electrical insulation, wire protection, terminal covering, harness finishing and controlled sealing in OEM assemblies.
Heat Shrink
Typical Parameters
| Parameter | Typical value |
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| Material | Heat shrink material by application |
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| Working temperature | By selected heat shrink series |
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| Voltage / dielectric | Electrical insulation and mechanical protection |
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| Size range | Shrink ratio 2:1 / 3:1 / 4:1 |
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| Structure | Heat shrink tubing supplied as spools, lengths or cut pieces |
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OEM note: Detailed size table, validation data and custom packing can be confirmed by project.
Why this product
- Fits heat shrink tubing projects that need fast assembly, reliable insulation and neat wire finishing.
- Supports sourcing and engineering teams comparing shrink ratio, wall thickness and routing protection needs.
- Useful for connectors, terminal exits, cable marking and general harness protection.
Typical applications
- Automotive and appliance wire harness finishing
- Terminal insulation, cable branch covering and connector exits
- General electrical assembly, repair and export OEM projects
Frequently Asked Questions
Frequently Asked Questions
What is heat shrink tubing used for in OEM wire harnesses?
Heat shrink tubing is used for terminal insulation, branch covering, cable marking, bundling, connector exits, strain relief and neat harness finishing.
How do I compare heat shrink tubing options?
Compare shrink ratio, recovered size, wall type, adhesive requirement, installation temperature, flame or electrical requirement and the final validation standard for the project.
What information helps WCW Flex recommend samples?
Share the cable or terminal size, starting diameter, recovered diameter target, environment, sealing requirement, color, length and expected assembly method.
What shrink ratio should I choose for heat shrink tubing?
Common shrink ratios are 2:1, 3:1 and 4:1. A 2:1 ratio suits parts with consistent diameter. A 3:1 or 4:1 ratio suits connectors, splices or parts with varying diameter where the tubing must shrink significantly to cover the transition. WCW Flex offers standard, 150 C, dual-wall adhesive and eco-friendly dual-wall heat shrink in multiple ratios.
What is the difference between heat shrink tubing and silicone fiberglass sleeving?
Heat shrink tubing provides a tight recovered cover after heating, useful for sealing, marking and strain relief. Silicone fiberglass sleeving slides over the part without heat recovery, providing flexible routed insulation. Choose heat shrink when a sealed or tight cover is needed; choose sleeving when flexibility without heat installation is required.
Is WCW Flex heat shrink tubing RoHS compliant and UL recognized?
WCW Flex heat shrink tubing is produced to be RoHS compliant and recognized under UL 224. Specific products carry additional ratings such as CAN/CSA C22.2 No.198.1-99 or AMS-DTL-23053/5 Class 1. Confirm the exact standard, shrink ratio, temperature rating and flame class with the product specification and customer requirement.
