... , black color etc 3.splicing,jointing 4.for roof, walls and cement board 5.waterproof Description:Waterproof butyl ... and environment friendlyApplications:1.the connection of steel roof color plate, roof lighting sheet, sealing of gutter joint.2. ... the sealing and waterproofing of doors, windows, concrete roof and vent line etc3.the install of PC ... Butyl Rubber Splicing Double Sided Tape for Metal Roof