... Butyl tape for the first sealing of insulated glass.Easy to process, easy to transport & store, even butyl type without crack, no air bubble, high ... thickened by us, used for toughened or curtain wall insulated glass.9.28.73303C Model C ... locks, window bolt, door bolts, PU Foam, glass glue, cleaner, Aluminum rail, brush seal, gasket ... , etc. 9.28.73303A-C Butyl Tape for Hollow Glass doors and windows