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Thread: Leaking screw hole

  1. #1
    Join Date
    Jun 2008
    Location
    San Francisco
    Posts
    13

    Default Leaking screw hole

    Sorry if this has been covered before....very hard to find this searching the forum with words like leak & screw

    I have a 1958 homemade runabout on a trailer. She's made of juniper ribs/stringers and mahogany plywood. Despite flipping her over and removing/resealing the keel, spray rails & joints I still have small leaks. I threw a hose in the boat and found several leaks. One was from a joint I sealed with "Watertite Marine Epoxy". I had to grind that stuff out and replace with 4200. Done.

    The next leak is from a #10 screw. I will put a slightly longer screw in to replace, but what could I put on the screw to seal things up? 4200 feels like a bad idea if I ever want to take it back out. I thought of slick seam, but at 105 degrees in the sun, that stuff would probably not stay in place. Any Ideas?

    -John

  2. #2
    Join Date
    Oct 2008
    Location
    Walney, near Cumbria UK
    Posts
    14,350

    Default Re: Leaking screw hole

    Thicker screw?
    It really is quite difficult to build an ugly wooden boat.

  3. #3
    Join Date
    Oct 2009
    Location
    South Puget Sound/summer Eastern carib./winter
    Posts
    7,040

    Default Re: Leaking screw hole

    "watertite marine epoxy"

  4. #4
    Join Date
    Nov 2011
    Posts
    957

    Default Re: Leaking screw hole

    Yes, a number 12, but if that's not practical how about a bit of cotton string dipped in oil based paint and wrapped around the shank?

  5. #5
    Join Date
    Nov 2004
    Location
    Port Townsend WA
    Posts
    6,678

    Default Re: Leaking screw hole

    Paint will work but, the standard of the boat builders trade is to soak the cotton string in linseed oil.
    Jay

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