Stripping agents that use hydrogen peroxide and benzyl alcohol technology have been used for years to remove urethane sealers from airplanes and other demanding situations. DoradoStrip Coating Removers are biodegradable and nonhazardous. They will remove nearly all types of coatings including latexes, alkyds, lead-based paints, epoxies, urethanes, and even elastomeric waterproofing. It won't affect glass, rubber, or plastic. It contains no harsh solvents. Eldorado Solutions. 800-531-1088. www.eldoradochem.com .