Resin not setting smoothly in silicone mold

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    • May 18, 2019 at 5:08 pm #44899
      Connor Donkin
      Guest

      Using a silicone bread mold as a mold, the mold are 11″ long x 2.5″ wide and 1.75″ deep. This requires a lot of material to use so everytime I’m doing it its goung to waste as when the resin is removed from the mold it appears to have Mark’s all over the top. The marks look like wet Mark’s or veins in the resin. The mold is perfectly smooth so was wondering what could be going wrong? Thanks

    • May 18, 2019 at 9:02 pm #44970
      Katherine Swift
      Keymaster

      Hi Connor, it sounds like you may not be mixing the resin thoroughly enough. What kind/brand are you using?

      • May 19, 2019 at 6:47 am #45106
        Connor Donkin
        Guest

        Thanks for the reply, it is a water clear casting resin, just a basic set off Ebay. I did use a metal mold too and they came out fine but it is smaller than the silicone one. Thanks

    • May 19, 2019 at 7:48 am #45116
      Connor Donkin
      Guest

      HI, I forgot to mention that its not set in the resin, it’s on top and around the sides. On the top surfaces it’s got the marks like rough patches that look like water Marks or veins on top

      • May 19, 2019 at 4:06 pm #45218
        Katherine Swift
        Keymaster

        Hi Connor,

        Is your casting resin a polyester resin? If so, it sounds like it’s getting too hot. Try using less hardener.

    • May 19, 2019 at 6:09 pm #45252
      Connor Donkin
      Guest

      Yes it’s a polyester resin, I’ve been using 2% but I will try 1% instead, thanks

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