Soft molded swim platform 94 - 300

Discussion in 'Fiberglass/Wood/Gelcoat Repair' started by frosh coach, Jan 17, 2020.

  1. frosh coach

    frosh coach Member

    181
    Apr 20, 2011
    Long Island Sound, New Haven CT
    1994 300 Sundancer
    1989 230 Cuddy (SOLD)
    Twin Mercruiser 350 FWC, Alpha 1 Gen II
    Hi all,
    Its been a while since I've been on, but can use some info for you all. My 94 300 has a soft sport (about 10" x 2') on the molded swim platform. The only place i can think that water may have entered is either from the rub rail or the ladder. the ladder is screwed into the top of the platform.

    Has anyone else experience this?

    Once i determine source of the water, the big question is, how did you fix the soft spot? Could a resin be injected in to firm everything up?

    Thanks,
    Chris
     
  2. techmitch

    techmitch Well-Known Member GOLD Sponsor

    May 1, 2008
    Chesapeake Bay, Middle River/Frog Mortar Creek MD.
    1999 270 DA
    Twin 4.3s W/Alpa I Gen II's
    Never had to deal with that problem personally but I've seen this mentioned here several times.
    https://injectadeck.com/
     
  3. frosh coach

    frosh coach Member

    181
    Apr 20, 2011
    Long Island Sound, New Haven CT
    1994 300 Sundancer
    1989 230 Cuddy (SOLD)
    Twin Mercruiser 350 FWC, Alpha 1 Gen II
    Thanks Mitch, I'll check it our.
     
  4. Lazy Daze

    Lazy Daze Well-Known Member TECHNICAL Contributor GOLD Sponsor

    Apr 21, 2009
    PA
    Various
    Various
    It's a relatively easy fix to replace a wood core... except for the access, in this case. But the process, itself, is very straight forward. Cut out old core, epoxy new core in place. It's really just rough carpentry. But again, the access is the sticking point.

    Do you have any thoughts of putting something like Seadeck on your platform? If you do, you do the cutting/repairing from the topside since you'll end up covering it up.

    I've never personally done the injection stuff - but it could be worthwhile to look into that. The wood core used in the platform does not connect to any other wood so there's no worry of rot being transferred to the transom/stringers, etc. It is (most likely) not even connected to the cockpit floor - which can easily be verified by looking underneath.

    FYI... the area of soft/rotten wood WILL be much larger than what you think. A good rule of thumb is to expect it to be 3 times the size.
     
  5. boatman37

    boatman37 Well-Known Member

    Jun 6, 2015
    pittsburgh
    2006 Crownline 250CR. 5.7 Merc BIII
    Previous: 1986 Sea Ray 250 Sundancer. 260 Merc Alpha 1 Gen 1
    5.7 Merc BIII
    Different boat but took my swim platform off to re-core it over the winter. I looked into the Inject-a-dek but my concern is there is still wet wood that will continue to rot leaving another spot that needs fixed? I'd love to go that route if I was sure it wouldn't continue rotting. In my case mine is removeable though so repairing it is easier than an integrated one.
     
  6. frosh coach

    frosh coach Member

    181
    Apr 20, 2011
    Long Island Sound, New Haven CT
    1994 300 Sundancer
    1989 230 Cuddy (SOLD)
    Twin Mercruiser 350 FWC, Alpha 1 Gen II
    Always good info.
    Maybe I’ll try the injection, if it doesn’t hold up, then I’ll open the platform and expoxy new Core in.

     

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