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  1. #1

    Default Epoxy working time installing new transom

    The transom wood is removed and the transom is ready to receive it's new plywood. I am concerned about the fast setting hardener kit that I have and having enough time to coat the inside of the fiberglass hull/transom and move the new wood into place. This is a 18' boat working from the inside. Temps inside the shop will be in the mid 70's.
    Your thoughts?

  2. #2
    Join Date
    Sep 2010
    Posts
    22,293

    Default Re: Epoxy working time installing new transom

    Get a helper.---Put tools in place.-----Practice your moves to avoid wasted time.----Or get a slow hardener kit.

  3. #3
    Join Date
    Sep 2003
    Location
    New Tripoli, PA, USA!
    Posts
    17,175

    Default Re: Epoxy working time installing new transom

    You can put the epoxy in a cooler until it's time to use it. Don't freeze it--just keep it about 40 to 50 ' F.

    You'll need a low viscosity epoxy for this since it will get rather thick at low temperatures.

    Jeff

  4. #4
    Join Date
    Jun 2008
    Location
    Island Heights, NJ,
    Posts
    3,622

    Default Re: Epoxy working time installing new transom

    Would suggest a slow hardener....
    Capt Bob
    1969 23ft ChrisCraft Lancer
    Merc 5.7L 260HP/ Volvo 280

  5. #5
    Join Date
    Aug 2006
    Location
    SW Ohio, USA
    Posts
    10,459

    Default Re: Epoxy working time installing new transom

    As stated above, all great ideas. It is important that all of the wood you use on the entire boat be dry fitted.

    Have someone keep stirring the epoxy to keep it from cooking off...if it gets hot it is useless. Mix it in a can within a can of crushed ice to cool it and extend its working time.

    Use a small rectangular trowel to spread it quickly.

    You have 4 bolt holes to use for clamping where the tiedown rings go.

    L&L epoxy comes in either cool or hot weather blends and can be brushed on. It also makes epoxy putty to fill gaps when blended w/sifted sawdust.

    Wedge two 2"X4"x8's in the bottom of the hull against the lower transom. A couple of concrete blocks will hold them in place.
    Fix minor things (replace wear items for preventative maintenance.) that cause major problems before they break.

  6. #6

    Default Re: Epoxy working time installing new transom

    Thanks to all that replied! All good ideas and thoughts. I will give it a go soon. My old transom wood had 2 layers of cloth sandwiched between the wood. I plan to do the same with the 1708 Biaxial Mat Cloth I bought if the thickness works out. My transom originally was 1-7/8" total including the 3/8" thick fiberglass transom outer skin. I am assuming it needs to be the same so the engine and outdrive connect the same.

  7. #7
    Join Date
    Dec 2006
    Location
    Greenfield Me. USA
    Posts
    6,187

    Default Re: Epoxy working time installing new transom

    Ayuh,.... Merc specifies 2" to 2, 1/4" transom thickness,.....
    Any Grease is Better,... Than No grease at All....

  8. #8

    Default Re: Epoxy working time installing new transom

    Quote Originally Posted by bondo View Post
    Ayuh,.... Merc specifies 2" to 2, 1/4" transom thickness,.....
    I should be fine then. I anticipate the it will come out 2" or so.

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