Do you know the make of the boat? It is a standard floor or a self bailer? The types of repair materials will depend on the material the boat is constructed from. I have rehabbed three hypalon boats so could offer good advice on that material. Manofrubber.com is a good source for glues and paints. There is a product you can line the inside of the tubes with to seal up pinholes. Gacoflex has specialty paints to recoat exteriors with. Try to find out the type of material and re-post.