Aluminum, carbon fiber and high-strength steel alloys have dominated the automotive materials discussion in recent years, but DuPont is reintroducing the topic of plastics with a number of significant breakthroughs. A plastic side-impact door beam is the supplier’s latest showcase technology. Developed with PSA Peugeot Citroen, it is up to 60% lighter than a comparable part made from ultra-high-strength steel, depending on size and design. With a beam in every door, that adds up to ...

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