Minwax 33260000 Helmsman Spar Urethane Aerosol, 11.5 Ounce, Semi-Gloss 4 Pack

Contains UV blockers to reduce the sun's graying and fading effects Forms a protective barrier against rain and moisture Special oils allow the finish to expand and contract with the wood as seasons and temperatures change Finish Fortified alkyd resin formulated to dry to a hard but not brittle finish