Clear gelcoat and mosture

Discussion in 'Fiberglass and Composite Boat Building' started by mickyryan, Jul 29, 2023.

  1. mickyryan
    Joined: Apr 2016
    Posts: 26
    Likes: 1, Points: 3, Legacy Rep: 14
    Location: florida

    mickyryan Junior Member

    Restoring a fish and ski and have been re flaking and clear coating hull but clear gel coat seems to soak up dew every day then dry out, is this normal until it is waxed ? I dried with a heat gun to show what's going on
     

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  2. gonzo
    Joined: Aug 2002
    Posts: 16,782
    Likes: 1,707, Points: 123, Legacy Rep: 2031
    Location: Milwaukee, WI

    gonzo Senior Member

    Did you use waxed gelcoat or Duratec additive ? Otherwise, it did not cure properly.
     
  3. mickyryan
    Joined: Apr 2016
    Posts: 26
    Likes: 1, Points: 3, Legacy Rep: 14
    Location: florida

    mickyryan Junior Member

    No but I talked to supplier he told me it will do that until I've sealed it off with wax or duratec final coat
     
  4. mickyryan
    Joined: Apr 2016
    Posts: 26
    Likes: 1, Points: 3, Legacy Rep: 14
    Location: florida

    mickyryan Junior Member

    I just have to wait for it to burn off before doing another coat, trying to build up so I never buff through flake
     

  5. ondarvr
    Joined: Dec 2005
    Posts: 2,924
    Likes: 572, Points: 113, Legacy Rep: 506
    Location: Monroe WA

    ondarvr Senior Member

    You shouldn't let it get wet until after the final coat with whatever additive you plan to use.

    Absorbing water and turning cloudy or milky is normal for an uncured surface.
     
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