Bob from Sheridan, WY did an outstanding job on the kayak, adding his own touches to the plaster seat. I asked him about the finish and he replied: Ray, Finish is 7 coats (sanding between every 2) of Behr oil based spar urethane. Used it on my boats for years, works good, just needs time to sand and build coats. Did not epoxy hull. I did put deck on top of sheer clamp. That way it could hang over to be trimmed and shaped later. I also put extra decking panels (the wide ones) under the seat area to clean it up.