Join Date: Apr 2006
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"Once done you seal the whole thing up with epoxy and hope it does not leak."
What ever happened to tradition? You can indeed build a clay dam outside the hole in the keel, and then pour molten lead (with a bit of solder or flux to help it bind perhaps?) to seal the hole, instead of using plastics. If you preheat and do the pour right, the new metal will liquify into the existing keel metal and there'll be nothing to leak, just solid metal.