Perma R Products 18755 Sheathing Tape, 55 yds L, 1.87 in W, Polypropylene Backing, White White

Aggressive solvent based acrylic combined with flexible polypropylene film provides superior sealing and protective benefits. Designed for permanent seaming and sealing of joints in foam insulation and other sheathing materials, to secure lap edges in housewraps and other vapor barriers, repair rips and tears in roll and batt insulation, construction films and membranes. Eliminates drafts around window and door openings. Superior bonding at sub-zero (as low as -40 deg C/F) or at elevated temperatures.