Powertrain

One option for reducing weight in vehicles without sacrificing safety and comfort is to replace metal parts wherever possible. Evonik offers for this purpose, in addition to the high-temperature polymer VESTAKEEP^® PEEK, VESTAMID^® HTplus (PPA), a semicrystalline, high-temperature-stable material that has been specially developed as a substitute for metals in classic applications; it can be used in add-on engine parts as well as in plastic-rubber composites. For this process patented by Evonik, we also offer specially developed VESTAMID^® D molding compounds.

Charge air duct

VESTAMID^® HTplus has proven its suitability for parts in the immediate vicinity of the engine under grueling racing conditions. A VESTAMID^® HTplus charge air duct has been used in a Lotus Exige sports car; this is only half the weight of the metal duct it replaces and, thanks to its extremely smooth interior walls, optimizes airflow and engine performance. In the charge air duct of charged engines, temperatures can rise to 170°C, depending on the situation.