McCloskey 6505 Man O War Marine Satin Spar Varnish protects and beautifies interior and exterior wood surfaces. Remains flexible and absorbs the expanding and contracting seasonal movement of the wood. Maximum UV protection. Water resistant. Resists cracking and peeling. Resists ocean salt spray. For use on exterior wood entry doors, wooden shutters, outdoor furniture, windowsills and frames, planters and trim on boats.