30 Jul '12, 10am

Cars Could Lose Weight With Green Cavity Foam

Besides automakers' lightweighting efforts , they're also interested in reducing sound and vibration, both inside and outside the vehicle. A renewable version of Dow Automotive Systems' polyurethane cavity sealing Betafoam system, which achieves both, is now on the market. Dow's new product, Betafoam Renue , is made with 25 percent renewable materials based on soybean oil, Allan James, performance systems marketing manager for Dow Automotive Systems, told us. It's a two-part polyurethane rigid foam system that offers the same performance as the existing Betafoam system, which is made with low-emissions MDI (methylene diphenyl disocyanate), an ingredient used in polyurethane manufacturing. Renue is 25 percent less dense, however, at a nominal density of 1.45 gm/cc versus BETAFOAM's 2.0 gm/cc. A renewable version of Dow Automotive Systems' polyurethane cavity sealing BETAFOA...

Full article: http://www.designnews.com/author.asp?section_id=1392&doc_...

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