New to Boating World - Need Help With Floor Replacement

Discussion in 'Boat Design' started by thenewguy, May 13, 2020.

  1. thenewguy
    Joined: May 2020
    Posts: 9
    Likes: 0, Points: 1
    Location: toronto, ontario

    thenewguy Junior Member

    no problem. hopefully is the weather is good I'll get started on it this weekend.

    by the way in terms of epoxy for the new plywood..is there any that homedepot sells that would suffice? or the local hardware store
     
  2. jbo_c
    Joined: Jul 2017
    Posts: 37
    Likes: 1, Points: 8
    Location: Gainesville, GA

    jbo_c Junior Member

    About everything you find at a standard store is going to be poly based(even though it says ‘epoxy’). For true epoxy You’ll want to go to Raka, duckworks, boatbuildercentral or similar places others here are familiar with. Not affiliated with any of those. They’re all places I’ve bought from and been treated well.

    Jbo
     
  3. gonzo
    Joined: Aug 2002
    Posts: 14,154
    Likes: 544, Points: 123, Legacy Rep: 2031
    Location: Milwaukee, WI

    gonzo Senior Member

    Marine plywood and epoxy is overkill for a 94 Bayliner. Exterior grade and polyester/matt will give you another 20+ years of service.
     
  4. thenewguy
    Joined: May 2020
    Posts: 9
    Likes: 0, Points: 1
    Location: toronto, ontario

    thenewguy Junior Member

    Cut all the bad sections out and I found the foam only near the stern is water bogged. I know it's needed for buoyancy and support to the stern so I'll put new foam back in that section. Is it true you can use foam pool noodles??
     
  5. bajansailor
    Joined: Oct 2007
    Posts: 849
    Likes: 223, Points: 43, Legacy Rep: 37
    Location: Barbados

    bajansailor Marine Surveyor

    You will have basically the same amount of buoyancy if the compartments under the floor are empty and if they are filled with foam - in fact the buoyancy will be a bit less if they are filled with foam, as the boat will then be a bit heavier.
    You mention that the foam near the stern was water bogged - sounds like it was not 'closed cell' foam. Foam is not much use if it soaks up water like a sponge.
    I would be inclined to just leave the compartments empty, while ensuring that they are watertight.
     
  6. Blueknarr
    Joined: Aug 2017
    Posts: 783
    Likes: 149, Points: 43
    Location: Colorado

    Blueknarr Senior Member

    The foam is there to fulfill a Coast Guard requirement for post catastrophe bouyancy. Simple air filled Chambers don't meet the requirements. Whatever stupidity that causes a hull breach is also likely to disrupt the chamber's integrity as well. The foam filling will provide bouyancy after the hull is flooded.

    Expansion foam, ping-pong balls, pool noodles or cut up styrofoam all work.


    Before you seal everything up. Check the transom for core rot next to where the saturated foam was.

    If enough water got into the "sealed" bouyancy chamber to saturate the foam, then water penitration into the "sealed" transom is highly probable.
     
    hoytedow and bajansailor like this.

  7. hoytedow
    Joined: Sep 2009
    Posts: 5,463
    Likes: 214, Points: 73, Legacy Rep: 2489
    Location: North of Cuba

    hoytedow Wood Butcher

    Epoxy! Be sure to seal all surfaces, even screw holes where water ingress will cause rot in a short time. Sunlight kills epoxy. Cover it.
    Polyester is inferior to epoxy in sealig wood.
    Polyester withstands sunlight extremely well.
     
Loading...
Forum posts represent the experience, opinion, and view of individual users. Boat Design Net does not necessarily endorse nor share the view of each individual post.
When making potentially dangerous or financial decisions, always employ and consult appropriate professionals. Your circumstances or experience may be different.