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3M offers lightweight PU alternative to plywood

ST PAUL, MINN. (June 28, 2:25 p.m. ET) — 3M Co. has developed a lightweight and rot-resistant polyurethane foam alternative to plywood. The PU foam boards with fiberglass reinforcement provide high strength in applications including marine, transportation and general construction, with a weight savings ranging from 30 to 60 percent vs.plywood.

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