It takes special materials to repair EDPM and PIB seams. This convenient kit contains everything this is needed to repair 100 feet (30 meters)of problem seams - Guardian EDPM Cleaner/Primer, Guardian Seamless Roof Coating, Heavy Duty Polymaster in a convenient 9-inch (22.5 cm) wide roll, Aluminum Roof Shield, a special applicator sponge and complete instructions. There is no more convenient approach to repair of rubber roof seams.