Applications
Automotive Wire Harness & Cable Compounds
For 105°C rated automotive cable and wire harness insulation, balancing heat resistance, low temperature performance and stable insulation resistance.
Applications
Automotive Wire Harness & Cable Compounds
Automotive wire and cable compounds have to balance heat ageing, cold bend and volume resistivity. TOTM combines high temperature tolerance with low volatility, which suits 105°C rated formulations; where a lower cold bend temperature is required it can be blended with DOS / DOA so that both heat ageing and cold service are covered.
Key performance requirements
| Item | Direction and notes |
|---|---|
| Temperature rating | Heat ageing requirement of a 105°C rated formulation |
| Cold bend | Cold bend temperature set by the vehicle service condition |
| Insulation resistance | Volume resistivity stable before and after ageing |
| Volatility and odour | Interior parts target low volatility and odour |
Dosage and processing direction
TOTM carries the main plasticizing load for heat ageing; for cold service DOS / DOA is blended according to the target bend temperature, with the ratio confirmed by cold testing.
Control the temperature profile and residence time during extrusion and granulation so that electrical and mechanical data stay consistent between batches.
Frequently asked questions
How is the temperature limit of TOTM confirmed?
The rating is defined by the vehicle or cable standard and has to be confirmed with ageing data on the finished part; TOTM is commonly used in 105°C rated formulations.
Why blend a cold-resistant plasticizer?
Heat tolerance and cold flexibility come from different plasticizer structures, so blending covers both service directions at once.
Applications
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