I am in the process of reburbishing an older boat of my friends with him ... He got the boat from an individual who left it bow pointing down on the trailer, filling the lower hull with water. My question now is, now that I've installed new Keel beams and ribs and refiberglassed over them is there anyway to fill the bottom with a foam for flotation before we re-deck it. <br /> I seem to remember a pour-in kind of foam that you trim after it has expanded and cured but I can't seem to find anything or anyone who knows what I'm talking about. am I crazy? 