Equistar Chemicals LP developed an auto wire-insulation compound it claims is the first product to meet a new heat-aging test.
The Houston company said its Petrothene XLWC047 withstands 3,000 hours of heat aging at 257° F for the Society of Automotive Engineers' low-voltage ultrathin wall primary cable test. The new compound processes as well as other Petrothene crosslinked ethylene polymers, said Equistar.
Automakers are using thinner insulation because of less space under the hood and because there is more wiring as auto systems increasingly go to electronic controls.
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