TotalBoat Seal is a fast cure marine sealant ideal for bedding hardware, windshields, and portholes. Use this fast setting sealant on vertical and overhead surfaces without drip or sag. The perfect bonding product for fiberglass, wood, metal, glass, marine plastics such as Starboard, and plexiglass. Seal is impervious to sun and waterproof, making it perfect for using above and below the waterline. It may be sanded and painted once cured. Use mineral spirits for clean-up. Do not use on wood deck seams. 10 ounce cartridge fits standard caulking guns. Comparable to 3M 4200 Fast Cure and Boatlife Life-Calk. Available in white only. All Totalboat products are developed by boaters, for boaters.