TPE Strain-Relief Boots | Flexible, Crack-Resistant Cable Ends
TPE Strain-Relief Boots & Molded Cable Ends
SEBS/SBS-based TPE compounds developed for strain-relief boots, molded cable ends and cable grommets.
These materials provide elastic recovery, kink and crack resistance, soft touch and good colorability
for appliance cords, chargers and device cables.
Elastic Recovery
Kink-Resistant
Crack-Resistant
Soft Touch
Kink-Resistant
Crack-Resistant
Soft Touch
Applications
TPE strain-relief compounds are commonly used for:
- Power and appliance cord exits – boots at plug or device ends.
- Chargers and adapters – molded cable ends with repeated bending.
- Data and signal cables – USB, audio, instrument cables with flexible exits.
- Cable grommets and feed-throughs – strain relief at panel or housing entries.
Typical Grades
| Grade | Hardness | Key Performance | Processing | Typical Use |
|---|---|---|---|---|
| TPE-S Boot 60A | 60A | Very soft, high bending comfort, good recovery | Injection molding | Small charger & device boots |
| TPE-S Boot 70A | 70A | Balanced softness and fatigue resistance | Injection / insert molding | Appliance cord strain relief |
| TPE-S Boot 80A Tough | 80A | Improved cut and crack resistance, firm support | Injection molding | Heavy-duty power and tool cable ends |
Note: Adhesion and flow can be adjusted according to the cable jacket material and mold design.
Key Advantages
- High elastic recovery to resist kinking at cable exits.
- Crack resistance under repeated bending and handling.
- Soft-touch feel that matches consumer electronics expectations.
- Good colorability for matching or branding of plug and cable.
- Available in SEBS (better aging, low odor) and SBS (cost-focused) versions.
Processing & Recommendations
- Recommended melt temperature: 170–200 °C depending on hardness and flow.
- Drying: 70–80 °C for 1–2 hours before molding.
- Suitable for injection and insert molding onto pre-assembled cables.
- Ensure cable jackets are clean and free from release agents in bonding zones.
- Gate and venting design should support complete filling of thin boot sections.
Application Gallery
Charger Cable Boots
Soft Touch
Daily Bending
Appliance Cord Ends
Kink-Resistant
Durable
Panel Grommets
Feed-Through
Protection
Target Markets
- Producers of charger and adapter cables.
- Appliance cordset and plug manufacturers.
- Cable assembly and harness factories using molded ends.
- Device and equipment OEMs requiring customized cable exits and grommets.
Request Samples / TDS
Need a strain-relief TPE with specific hardness, color and bending life?
Contact us for sample grades and technical data sheets, and we can help define a compound that balances
softness, fatigue resistance and cost.
Explore related materials:
Wire & Cable TPE Overview |
Cable Jacket TPE |
Coil Cable TPE
