This is a high quality gray butyl tape that is extruded onto smooth silicone release paper. It is used to bond and seal metal roofing, windows, gutters and roof penetrations, for sealing side laps and other interfaces on cladding. Used with all types of roofing systems.
Because the sealant is on a continuous roll, installer can work fast and be virtually assured that there are no skips or runs in the seal.