BASF P003_Water_-pump
With the advancement of e-mobility, the requirements for the aging resistance of plastics in contact with chemicals are increasing significantly. Frequent battery charging, which must be maintained at a constant temperature, increases the required service life of plastic components in vehicles under the hood to 45,000 to 55,000 hours at operating temperature—compared to 5,000 hours for conventional combustion engines. Plastics are used in the engine compartment, for example, in pumps and valves.
While the durability of materials has primarily been tested in air-heat environments to date, BASF is now applying proven methods to hydrolysis storage – i.e., aging in water-glycol mixtures. This involves using the Arrhenius equation, which describes the relationship between temperature and reaction rate, enabling the durability under normal conditions to be predicted.
As part of a series of tests launched in August 2020, a polyamide from BASF’s latest generation of materials was examined. Ultramid® is characterized by optimized hydrolysis resistance, laser markability, glass fiber reinforcement, and low halogen content, thus meeting all the requirements of the automotive market, even looking ahead to the future. The results show that the properties of the tested polyamide can be extrapolated to over 100,000 hours after five years of testing, providing the automotive industry with the necessary assurance in the passenger car and truck sectors.
BASF is also a leader in the field of coatings. We congratulate the winner of the MATERIALICA Design + Technology Award 2025 in the Material category: Reverence Darkness by BASF Coatings. Astrid van der Auwera, Global Design Manager, and Mark Gutjahr, Global Head of Design, accepted the award and briefly explained the principle behind Reverence Darkness: What if the tires that propelled us forward could continue their journey in a new form? Reverence Darkness uses recycled tire material as a source of carbon black to transform old tires into a symbol of sustainability. This color represents renewal and reminds us to view waste as a valuable resource. Every step toward a circular economy brings us closer to a greener, cleaner Earth.
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