Flat fiberglass tray as a mold?

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    • February 19, 2018 at 5:38 pm #12322
      Tracy
      Guest

      Can I use release spray on a flat fiberglass tray (polypropylene) as a mold for epoxy resin? You know, kind of like one of those fast good trays? Thank you.

    • February 19, 2018 at 6:44 pm #12329
      Katherine Swift
      Keymaster

      Polypropylene plastic works well for resin molds, however, they need to be of a certain thickness (a couple of millimeters or more) to work as a resin mold. As long as you have that thickness, I think it’s worth a try.

    • February 19, 2018 at 7:22 pm #12331
      Tracy
      Guest

      Thank you, Katherine.

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