The WPA Butyl Waterproofing Tape is a multipurpose self-adhesive sealing bandage designed for flashing and detailing a variety of surfaces. With outstanding adhesion properties of the butyl rubber backing, the WPA Butyl Tape is ideal for sealing internal and external surfaces that require protection against moisture ingress, vibration and flexing. Ideally suited for waterproofing, roofing and general building applications the Butyl Waterproofing Tape is designed to be finished over with WPA adhesives, membranes, coatings, mortars, adhesives and renders.