molds question

Discussion in 'Fiberglass and Composite Boat Building' started by roko, Nov 9, 2005.

  1. roko
    Joined: May 2005
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    roko Junior Member

    What i need to put on mold before i spray gelcoat??
    please advice
     
  2. searaytuna
    Joined: Oct 2005
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    searaytuna Junior Member

    gelcoat on the mold? Huh? I thought you put the gelcoat as the last and final coat? Is there a different way of doing that?
     
  3. buckknekkid
    Joined: Oct 2005
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    buckknekkid Senior Member

    mold release or ask War Whoop.
     
  4. Eagle Boats
    Joined: Nov 2003
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    Eagle Boats Senior Member

    The mold will need a mold release agent, which is typically a mold release wax. If the mold is brand new, I typically would put on approximately eight coats of wax, followed by a fine mist coat of poly vinyl alcohol (pva). If the mold had been used and broken in, all you should need is one coat of wax.

    The boat is built from the outside in, so that is why gelcoat is the first layer in the mold.
     

  5. roko
    Joined: May 2005
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    Location: NORWAY

    roko Junior Member

    thanks
     
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