For use on virtually all roofs, walls, floors, gravity tanks, troughs, etc…UV stable and moisture tight, it provides an air and vapor barrier. And the thick, 4 mil aluminum backing combined with a thinner layer of EternaBond’s advanced MicroSealant™ creates an extremely hard surface. A-Seal bonds to a wide range of materials including carbon steel, aluminum, galvanized steel, aluminum foil, gypsum board, wood, rubber, tar, polyethylene, polypropylene, polystyrene, fiberglass, brick, concrete,...