Foam???

Discussion in 'Fiberglass and Composite Boat Building' started by Boat Craze, Mar 15, 2006.

  1. Boat Craze
    Joined: Mar 2006
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    Boat Craze Junior Member

    I just purchased a boat and the inside was gutted out. I am installing new stringers but and marine grade plywood. But do I use in between them?
     
  2. basstardo
    Joined: Jun 2005
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    Location: Williamsburg, VA

    basstardo Junior Member

    Huh?:confused:

    If you mean for flotation to fill up the cavities in between the stringers, deck, and hull, yes foam will work. Two part closed cell foam is what you want. Probably 8lb density.
     
  3. Boat Craze
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    Boat Craze Junior Member

    Can I get it from home depot or lowes?
     
  4. basstardo
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    basstardo Junior Member

  5. Boat Craze
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    Boat Craze Junior Member

    I have a 16' Infinity how many stringers should I have?
     
  6. jimslade
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    jimslade Senior Member

    two with side floor supports every 6 ft
     
  7. Boat Craze
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    Boat Craze Junior Member

    What do I use for side floor supports? What type of wood do I use for the stringers?
     
  8. nero
    Joined: Aug 2003
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    nero Senior Member

    www.uscomposites.com for cheap two part foam. several different densities available. Best prices that I have found.
     
  9. Boat Craze
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    Boat Craze Junior Member

    Does n e 1 know what type of wood do I use for stringers and supports?
     
  10. jimslade
    Joined: Aug 2005
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    jimslade Senior Member

    My personal preference is pressure treated ply(well dried out) 2 layers of 3/4-total 1 1/2 for the stringers 1/4 inch for the sides. Make sure that the stringers DO NOT touch the bottom of the boat. You can set them just above the bottom with a thin layer of foam.
     
  11. Boat Craze
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    Boat Craze Junior Member

    ok thank you so much for the helpful advice
     
  12. Boat Craze
    Joined: Mar 2006
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    Boat Craze Junior Member

    can you use just spray or regular foam from wal mart under the stringers?
     

  13. JonH
    Joined: Feb 2006
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    JonH Junior Member

    This thread may be of interest:

    http://www.boatdesign.net/forums/showthread.php?t=10680

    It might be worth your while finding a local with the knowledge to get you started with your project ? Nothing difficult in glassing in new stringers, but you don't want to get it wrong.
     
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