[mark180]

As a boatbuilder I would recommend spar varnish. Captain’s is a good one to use. Flagship is very good as well, though I would advise against using it on bare wood because it contains pigment. It will make the wood look like it was poorly stained. Epifanes is another good varnish. I thin it down will equal parts kerosene and penetrol. The problem with it is that you can’t sand and apply a coat the next day. As much aseveryone hates sanding, it is the key to the whole finish. If you don’t sand, the varnish will start to peel fairly soon.