the gheenoe boys will all probably roll their eyes

Discussion in 'Boat Yard Basics' started by levip, Dec 3, 2010.

  1. levip

    levip I Love microskiff.com!

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    i have a 13' waterbug its build IDENTICAL to a 13' gheenoe highsider only not as thick on the sides of the hull and im in the process of redoing the transom plate i need to find a half sheet of coosa and was wondering what i could do to strengthen up the sides a bit while still keeping it light as i am only running an old (1956) 5.5 evinrude ?

    i was thinking of a 2"x1/2" strip of that pink foam insulation and wrap it in 1-2 layers of  5" fiberglass tape and then gusset those back into the transom (using foam for gussets and tape again over top anyone tried this before ?
    i saw a guy use the stuff on a 19' mako before for stringers and the keel with REALLY good results he used the 2" thick stuff
    im pretty proficient with my glass work so it wont be hard i was just wondering if that would help or should i just suck it up yank the rubrail off and lay another layer 1.5oz mat down on the sides ? or do both
     
  2. DuckNut

    DuckNut Brandon, FL

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    Mat is not the ideal product. Mat is designed to add bulk but adds little strength. I have seen the foam thing before and I have built a boat from foam with great results. The pink foam will dissolve with fiberglass resin (ester resins- polyester, vinylester, etc.). It needs to be used with epoxy.

    The concept is to add a small space between the layers of glass and create a sandwhich effect and the strength is increased exponentially as the thickness is increased. Probably overkill for what you need to do.

    TomFL had a similar project- search for it and read it. I believe he just added either 6 or 9oz cloth with epoxy and then painted.
     

  3. HighSide25

    HighSide25 Well-Known Member

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    shoulda got the real deal


    ::) ::) ::) ::) ::) ::) ::) ::) ::)


    ;)
     
  4. levip

    levip I Love microskiff.com!

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    ew thanks for the heads up on the polyester resin melting the foam i didnt know that

    how about a half sheet of coosa ? anyone know where i can get that ? i found a full sheet but id have way too much left over

    ps got the whole thing for 300 bux with a really nice galvanized trailer
     
  5. DuckNut

    DuckNut Brandon, FL

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    $300 and you want to coosa??? That will be 50% of your purchase price. Use $8 worth of plywood.
     
  6. levip

    levip I Love microskiff.com!

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    yeah i know but ...... i was hoping one of you guys had a small piece (24x48 ) laying around in your garage that you were getting tired of moving

    if i cant find a piece i guess ill have to go the plywood route
    any sugestions on what kind and where ? im in savannah