General Motors Corp. is asking for bids from suppliers for thermoplastic elastomer (TPE) weather seals on its Epsilon midsize car program, Ward's has learned. The request is significant because it could represent the beginning of a massive change from the traditional rubber sealing systems that presently dominate the market to alternative materials that offer weight reduction, lower costs and improved recyclability and performance. It was just a little over a year ago when TPEs won their ...

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