Thickening Gellcoat

Discussion in 'Materials' started by slneatboat, Dec 12, 2003.

  1. slneatboat
    Joined: Nov 2003
    Posts: 29
    Likes: 1, Points: 3, Legacy Rep: 20
    Location: Norfolk,England

    slneatboat Junior Member

    Does anybody know if there is an additive or filler that can be added to gellcoat to make it into a putty like substance.I also want the gellcoat to retain its original colour in this case white and be as water proof as its orginal state if possible.Thankyou
     
    slneatboat, Dec 12, 2003
    #1
  2. 8knots
    Joined: Feb 2002
    Posts: 266
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    Location: Wasilla Alaska

    8knots A little on the slow side

    You can add microballons (hollow glass bubbles) this will thicken it up! It is a more expensive option but sands great. It will be somewhat more porus tho. So plan on a topcoat with surfacing agent. I don't know what kind of volume of mix you need but it takes alot to bring it to a fairing putty stage. You might just use epoxy then topcoat with your gelcoat
    Good luck 8Knots
     
    8knots, Dec 12, 2003
    #2
  3. gonzo
    Joined: Aug 2002
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    Location: Milwaukee, WI

    gonzo Senior Member

    Fumed silica (Cabosil or Aerosil) works well.
     
    gonzo, Dec 13, 2003
    #3
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