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Thread: Sealing up holes in plywood

  1. #1
    Join Date
    Mar 2009
    Location
    Texas
    Posts
    7,933

    Default Sealing up holes in plywood

    On the barn door type shutters I'm making, I'd like to seal up the holes where the mounting hardware penetrates the plywood.

    I'll confess to not paying attention to how to do this with boat deck hardware.

    On one end, I could over drill the holes, fill with epoxy, and redrill. Short of that, what methods or bedding compounds will give good long term performance?

    Something like a good 4200 gasket, then tighten?

    Thanks
    Last edited by bluedog225; 02-21-2021 at 11:07 AM. Reason: Typo

  2. #2
    Join Date
    Jan 2000
    Location
    Portland, Maine
    Posts
    21,789

    Default Re: Sealing up holes in plywood

    Overdrill, epoxy, redrill would be good. And then use butyl tape as a bedding. They’ll last forever. Ish.

  3. #3
    Join Date
    Oct 2009
    Location
    South Puget Sound/summer Eastern carib./winter
    Posts
    20,139

    Default Re: Sealing up holes in plywood

    at the very least, dip fastenings in bagbalm.
    lubes and coats the fastening...travels into the endgrain of wood. making it water resistant..never dries out.

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