1525CW FSK Facing Tape is primarily used as a vapor seal on FSK faced fiberglass ductboard and blanket systems. Tridirectionally reinforced with 2 x 3/sq.in. (2.5 x 2.5 cm) fiberglass scrim, U.L. listed Foil/Scrim/Kraft lamination. Coated with a special cold weather acrylic adhesive system which combines very high quick stick at normal temperatures with superior low temperature performance. Recommended for use down to 10°F (–12°C). Conforms well to both fibrous ductboard and blankets. The ultimate in cold weather tapes. Meets ASTM C1136.