Joining a fiberglass cabin to a steel hull

Discussion in 'Metal Boat Building' started by Tygafan, Nov 11, 2007.

  1. Tygafan
    Joined: Nov 2007
    Posts: 11
    Likes: 1, Points: 0, Legacy Rep: 19
    Location: thailand

    Tygafan Junior Member

    I have a 44' steel hull and would like to remove the steel cabin by cutting it off just above the deck and replacing with a newly built fiberglass cabin. I am looking for suggestions on how to join the fiberglass to the steel. Bolting? Joining the fiberglass to the steel? ........
    Also are there any issues with this? Is this a bad idea having fiberlglass mated to steel?
     
    1 person likes this.
  2. MikeJohns
    Joined: Aug 2004
    Posts: 3,192
    Likes: 208, Points: 63, Legacy Rep: 2054
    Location: Australia

    MikeJohns Senior Member

    If the structure is not compromised by this modification the big problem is the difference in expansion rates, but it is common enough .

    Weld a stainless riser in place use a polyurethane sealer (or other sealing gasket) in a layer at least 8mm thick and bolt through a cover plate then the FRP then the riser.

    Hope this helps
     
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