I am planning on building a stich-and-glue kayak this winter, but have some questions about the epoxy. Everything I read refers to epoxy for filling the seams, but they don't say what kind. A friend of mine who used to do auto-body work recomended Dura-glass. Would this work for filling the seams, or do I need a special epoxy? Also, what should I use to coat the outside of the plywood with to water-proof it? Fiberglass resin or maybe fiberglass gel-coat? Do I need to use fiberglass mesh on the entire hull to reinforce it or is just water-proofed plywood alright? This will be for lake fishing and will probably not see a river or rough water. Any advise will be greatly apreciated!