3M™ Weatherban™ Ribbon Sealant PF5422, Black, 3/8 in x 1/8 in x 50 ft, 24 Roll/Case. 3M™ Weatherban™ Ribbon Sealant PF 5422 is a thread reinforced preformed butyl rubber sealant tape. It offers a watertight, gasket-like seal around window and door frames and glass bedding applications. This sealant can also act as a metal seam sealer in overlap seams, building panels, rain gutters, and can be used in conjunction with mechanical fasteners.