Sealing expansion joints are subject to movements up to 20% of the average width of the joint. Ideal for sealing expansion and distribution joints in horizontal and vertical surfaces, including those that are subject to occasional chemical attacks by hydrocarbons300ML all-purpose, rapid hardening polyurethane sealant and adhesiveBonds to a wide range of substrates including cement and concrete, brickwork, steel, copper, aluminum, glass, mirrors, timber, plastics, and ceramicsIdeal for use as a bond breaker when installing MAPEI waterproofing membranes