Protect the beauty and integrity of exterior surfaces with Old Masters® Exterior Water-Based Spar-Urethane. This clear exterior application can be used on wood, fiberglass, coated metal, or painted surfaces and contains Ultra Violet Absorbers for advanced sun protection. Dries quickly and cleans up easily with soap and water. It provides a durable coating on properly prepared exterior surfaces, such as railings, outdoor furniture, above water-line marine surfaces, as well as wood, fiberglass and steel doors. For interior use on windowsills and door frames for added Ultra Violet protection. DO NOT USE on wooden decks or steps, wood siding, log homes or wood boats below water-line. As with all exterior clear finishes, this product will not offer unlimited protection against the elements. Surfaces which receive direct sunlight may have to be re-coated annually to maintain gloss and to prevent cracking and peeling.