Epoxy in the sun...

Discussion in 'Multihulls' started by rturbett, May 24, 2020.

  1. rturbett
    Joined: Aug 2005
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    Location: FINGER LAKES, NY

    rturbett Senior Member

    I have been rebuilding a shark catamaran, now with the deck off. It's an outdoor project- I don't have the luxury of a real workshop. I do keep it covered with a tarp -for the most part.

    How much should I worry about sunlight affecting the epoxy? How much exposure before it is weakened? hours, days months?

  2. Gary Baigent
    Joined: Jul 2005
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    Location: auckland nz

    Gary Baigent Senior Member

    Depends on sunlight power. You're in NY spring so you have plenty of time. If it was high summer I'd cover the coated area with tarpaulin after a week or so. I'm no chemist but in New Zealand we get paint on quickly to counter UV light, which is very strong here.
  3. fallguy
    Joined: Dec 2016
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    Location: usa

    fallguy Senior Member

    6 months under a tarp

    I have a long term boat project and it has yellowed a bit near the windows after 24 months..it is in a garage

    if you leave it out in the sun it will get wet and stuff and be harder to work anyhow
  4. aussiebushman
    Joined: Oct 2009
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    Location: Taralga NSW

    aussiebushman Innovator

    As Gary says, where you are should not be an immediate problem but within reason, best to get some polyurethane over the epoxy as soon as possible.
    Yobarnacle likes this.

  5. Yobarnacle
    Joined: Nov 2011
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    Location: Mexico, Florida

    Yobarnacle Senior Member holding true course

    Paint over the epoxy with UV resistant paint as soon as possible after ultimate application of epoxy.
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