I need to replace the floor on my '90 Nissan and have problems, too, like everyone else. After cutting the floor out about 2" inches away from the sides and picking out the old plywood I noticed the manufacturer didnt do a very good job of foam filling. So I bought some fill n seal and filled the gaps. I knew I would have overexpansion and I plan on cutting it down smooth. Then I was told to put a layer of either epoxy or poly resin down, a layer of chopped strand mat smoothed down, more resin, a layer of maybe 11 mil fiberglass cloth, then a layer of resin with a surfacing agent like MEKP, wait until it becomes a bit tacky, then lay the floor down and put weight on it to adhere better. If I am somewhat on the right page, how do I then faire the hull to the floor. Right now I plan on leaving that 2" rim on the edges to sit the new floor on. Would this be ok to do? I would then need to waterproof the edges somehow and am not sure how to do this. Any help would be greatly appreciated.
