5200 below waterline - bad idea?

Discussion in 'Wooden Boat Building and Restoration' started by CaptScot, Mar 10, 2006.

  1. CaptScot
    Joined: Aug 2004
    Posts: 45
    Likes: 1, Points: 8, Legacy Rep: 27
    Location: New Jersey

    CaptScot Junior Member

    Will 5200 polyureathane release from soaked wood below the waterline? I recently replaced some old non-functioning thru-hull fitting through a cedar planked hull with a taped cedar plug and 5200 to hold it permanently in place. The boat's not yet back in the water. Do I have to worry that these plugs may come out? Perhaps 101 polysulfide sealant is a better choice?

    Thanks Scott
     
    CaptScot, Mar 10, 2006
    #1
  2. MikeJohns
    Joined: Aug 2004
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    Location: Australia

    MikeJohns Senior Member

    Scot
    Adhesive strength is dependant on many factors so the answer is not as absolute as you want.

    You dont say what the vessel use is, but presuming a sea boat;

    If it were my boat I would mechanically fasten those plugs inside if they are now a permanent feature, just a hole and a peg through the projecting part or perhaps a copper plate over the hole if it is flush.
     
    MikeJohns, Mar 10, 2006
    #2
  3. gonzo
    Joined: Aug 2002
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    Location: Milwaukee, WI

    gonzo Senior Member

    5200 will delaminate from wet wood. Lifecaulk is a better product for the application.
     
    gonzo, Mar 15, 2006
    #3
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