Anchor 50 maximum performance duct tape was specifically developed to answer the need for a premium grade duct tape for applications that require a significant level of tensile strength. It is also a maximum performance tape for sealing, heating, and ventilation systems. Serves as an excellent moisture barrier. An extremely aggressive, wide temperature range adhesive system that bonds and holds to almost any surface. UL723 rated, meets HUD and B.O.C.A. codes.