Fiberglass canoe layup

Discussion in 'Boatbuilding' started by hardguy007, Dec 26, 2015.

  1. hardguy007
    Joined: Jul 2012
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    Location: Ballymoney

    hardguy007 Junior Member

    Hi

    Got myself a 15ft Canadian canoe mould and was wondering of a layup schedule. I have experience with Fiberglass as I've build a few boats from moulds and done numerous repairs. Not really wanting a mixed schedule if possible. I was thinking a layer of gel then 3 layers of 450gsm matt. What's your thoughts?
     
  2. hardguy007
    Joined: Jul 2012
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    Location: Ballymoney

    hardguy007 Junior Member

    Here's a photo
     

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  3. waikikin
    Joined: Jan 2006
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    waikikin Senior Member

    Sounds about right, dont know if you have a deck mold too. You're going to need a batten keel glassed over and seat risers glassed in too. That sheerline will need some help as well if there's no deck molding & of course some buoyancy tanks..
     
  4. PAR
    Joined: Nov 2003
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    PAR Yacht Designer/Builder

    40 ounces of CSM is heavy, though not uncommon on a 'glass canoe, if speed of production is desired. I'd suggest two layers of 1208, mat down over the gel, maybe with a 4 - 6 ounce (135 - 200 GSM) cloth as the exposed layer for finish. Maybe some coremat down first, then the combo fabrics.
     

  5. SukiSolo
    Joined: Dec 2012
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    Location: Hampshire UK

    SukiSolo Senior Member

    Definitely worth using a fine tissue or cloth next to the gelcoat, unless you want a lot of 'imprinting' a bit later on. Even pro stuff will sink after a couple of years but only by a minute fraction. Definitely do not use as heavy as 450gsm next to the surface, 200gsm is usually OK'ish or a real fine tissue first, then 200gsm. Also check compatibility of the cloths/tissues with the resins. Not all are compatible with both epoxy and polyester, assuming the latter for your build.
     
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