Butyl adhesive tape (butyl mastic sealant tape) is comprised of a highly viscous industrial sealant. As a tape, butyl sealants adhere to almost and materials substrate. One of the most important applications is for creating watertight bonds between similar or dissimilar substrates. Butyl tapes help prevent and reduce costly water damage. Tough butyl mastic, pressure sensitive mass, offers excellent adhesion to a variety of surfaces (no applicators required). Tape roll is 3/4" x 1/8" x 20'
