Does platinum curing silicone and epoxy resin go off after 3 months

Discussion in 'General Modeling' started by Moviepropmaker6, Aug 13, 2015.

  1. Moviepropmaker6

    Moviepropmaker6 Active Member

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    Hey guys,just asking if platinum silicone and epoxy resin go off and expire after 3 months
     
  2. trooper

    trooper Sr Member RPF PREMIUM MEMBER

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    no, unless it is stored under bad conditions it should be fine.
     
  3. Mr Mold Maker

    Mr Mold Maker Sr Member

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    Generally speaking, Platinum Silicones have about a six month shelf life from the manufacturer. Now I've had silicone go bad in 2 months, and silicone last for two years. All you can do really do is mix up a small batch and test it.

    As for Epoxy, I have never had epoxy go bad when kept in proper conditions.. room temp, no sunlight, etc. You may run into crystallization of the epoxy and the hardener will darken, but it should still cure fine.
     
  4. Moviepropmaker6

    Moviepropmaker6 Active Member

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    Maybe the silicone that went bad after two months was probably fairly old from where you bought it

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    Thanks

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    What are bad conditions for resin and silicone?
     
  5. Mr Mold Maker

    Mr Mold Maker Sr Member

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    I have gone through literally hundreds of gallons of silicone in my career. Some batches of silicone just aren't great.

    I know it was 2 months old because I checked the lot number. If you check the number and call Reynolds they can tell you exactly when it was manufactured.
     

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