Polyurethane will work the best on the single stage game.. Because of there high solids and there 2:1 hardener has a lot of mekp. Sand it really good 1-2 coats of polyester primer (ever coats G2 ) also hardened by mekp.. See the link here)) sand the primer with 320 don't let the surface get wet at all!!! Then your ready for 3-4 coats of polyurethane... Akzo nobel is what I use and haven't had a problem with it.. But there all pretty much the same.. Here's a pic of a ski I'm doing now in single
