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  1. AwallandAflouron

    Polyurethane block voids

    Hello, I'm a relatively new chemical engineer, and am attempting to pour a Urethane part A and B system into a hot mold at 200F. We are routinely seeing "air pockets" if you will as if the urethane is sucking back into itself during the curing process. Do you have any tips for me? Thank you

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