ZAR Exterior Water-Based Polyurethane is a rich, amber colored, environmentally safe, clear wood finish specially formulated to protect and beautify exterior wood surfaces exposed to direct sunlight. Containing ultraviolet radiation absorbers and anti-oxidants, ZAR is the ultimate in exterior protection. ZAR's full-bodied formula brushes on like conventional polyurethane for maximum durability and beauty. Ideal for wooden marine surfaces (above water-line), exterior doors - including fiberglass, wood and steel doors, natural wood siding, patio furniture, fences, gables and other wood surfaces exposed to direct sunlit and the harsh extremes of weather.