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  1. 5Fish

    Fracture in HDPE Living Hinge

    I have a problem with a HDPE living hinge. When I bend the hinge it breaks. It's a tiny hinge, only 0.005" thick and 0.030" wide. I have made it for years without a problem, but now the molders give me parts that crack and they can't seem to figure out why. I am NOT a polymer...

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