Thermoplastic polyester resists warping on sunroof.(POLYMERS/CERAMICS)

Advanced Materials & Processes,  November, 2005  

Tags: DuPont Co.

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Dimensional stability, non-warping properties, and abrasion resistance were the main reasons for the choice of DuPont Crastin LW9020 thermoplastic polyester for the front section of the frame for the sunroof on BMW's Series 1 and 3 models, reports DuPont Engineering Polymers, Wilmington, Del.

Crastin LW9020 is a polybutylene terephthalate (PBT) that contains 20% glass fiber reinforcement. It has particularly good non-warping properties, so that, in spite of the large size, the close manufacturing tolerances ...

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