Male fiberglass mold & finished surface

Discussion in 'Fiberglass and Composite Boat Building' started by erikhaha, Mar 25, 2009.

  1. erikhaha
    Joined: Sep 2007
    Posts: 43
    Likes: 4, Points: 0, Legacy Rep: 66
    Location: san clemente, ca

    erikhaha Junior Member

    Ok, I have made a male mold that I am going to fiberglass(see attached picture). My question is what is the best way, or tips/tricks that you guys have used to reduce fairing once the part is glassed? I hate sanding.

    I plan on glassing it with polyester resin, used for surfboards, because I have a lot of it and it is fairly cheap. I also have a lot of chopped-strand mat that will be used. Not sure the weight, but it is approximately 1/16" thick. After 2-3 layers of fiberglass I want to use gelcoat for the finish.

    I have never made a fiberglass part from a mold before, but I have researched it and I am pretty sure I am going about this the correct way, I just want to minimize the finishing sanding.

    Thanks
     

    Attached Files:

  2. Roger Moren
    Joined: Jan 2009
    Posts: 2
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: Mt. Pleasant,SC

    Roger Moren New Member

    If your male mold is fair the surface should be fair. But you are going the have to fair and sand. I would recommend, mirco balloons, "spheres" not talc if you don't like sanding, they sand easier. It looks like a small hull so there would also be a weight saving. Get a mask.

    For what it is worth.
     
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