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  1. Wildabeast's Avatar
    Member Since
    Jan 2007
    Posts
    547
    Jul 3, 2009, 7:09 PM - urethane #1

    Silly question but I want to start learning to cast and I have read about Polyester Resin, urethane resin, and urethane plastic....I get the difference between polyester and urethane resins, but what the heck is urethane plastic???
  2. Fractal-Fett's Avatar
    Member Since
    Jul 2009
    Posts
    493
    Jul 4, 2009, 3:24 PM - Re: urethane #2

    I'm pretty sure that urethane plastic is just regular plastic, like used in injection molding.

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