Minwax Helmsman Clear Semi-Gloss Spray Polyurethane, 11.5 oz. a very tough clear wood finish that resists cracking, checking, peeling, and yellowing. It effectively protects wood from water, salt air, sun damage, and atmospheric pollution. This spray polyurethane is i for use on patio furniture, exterior doors, bar tops, and wooden boat surfaces, providing durable protection with the convenience of an aerosol spray. Model Number: