void in keel - SailNet Community

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  #1  
Old 06-29-2008
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void in keel

So last week I started tackling a small crack on the forward edge of the keel on my Cal25. Opened it up and got water. Turns out I have a void in the leading edge of my keel. It does not penetrate to the bilge to the best of my knowledge. I found the bottom and drilled a drain hole. I estimate the void to be about 1" to 1 1/2" in diameter and 7 to 8" long. There is at least 1/2" of good solid glass and resin around it. My plan is to fill it so no more water can seep in and freeze when its on the hard. Located in upstate NY. I don't think there is a significant need for the strength for epoxy in the void. I'm thinking fiberglass resin with some silica filler to take up the space. I plan on finishing with epoxy/barrier coat and silica. Does this sound viable. Do I have to worry about the heat generated by the cure? Alternatives? Thanks for the suggestions. I keep finding small things that grow into major projects. Not surprised. The path is as enjoyable as the destination.

Kevin
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Old 06-29-2008
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IMHO, you should probably use Epoxy, since if the polyester resin doesn't bond tightly to the existing glass, it will leave an area where water can collect and freeze, requiring you to do this all over again. Epoxy will bond far better than polyester resin.

THe finishing with Epoxy, barrier coat and fairing is a good idea.
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Old 06-30-2008
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I second the epoxy recommendation and would also comment that since you had to drill a hole to get the water out, you must not have acess to the whole void. Correct?
If so...you need to be SURE to fill the whole void with resin and to do this you should drill another hole at the TOP of the void and inject your epoxy from the BOTTOM with a slow cure mix. This way you FILL the void rather than just let gravity find the easiest path out the bottom. When you see epoxy exiting from the top hole, you will know the void is filled.
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Good point cam.
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You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

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