3M™ Seam Sealer Tape, 08475, is a rubber-backed, 20.0 mil thick tape designed to duplicate the factory appearance and function typically found in door jams and trunk gutters. 3M™ Seam Sealer Tape is a fast and easy alternative to liquid sealers. Without the need for spreading, shaping or drying, this rubber based tape duplicates the appearance and function of factory-installed sealers in primed seam locations such as auto door hem flanges, door jambs and trunk gutters. The tape is pliable and conformable, so it easily fits the space - auto body technicians simply install the seam sealer tape over primer and apply the topcoat directly over it.