FSK Foil Tape

FSK Foil Tape FSK 320 is a high performance reinforced insulation tape of Foil/Scrim/Kraft. UL Listed and Mold Resistant. FSK has a special acrylic adhesive which excels in very cold and hot temps. Use for a vapor barrier on fibrous duct board for sheet metal ducts. FSK 320 is a high performance fiberglass reinforced insulation tape of Foil/Scrim/Kraft construction. UL Listed and Mold Resistant. FSK is coated with a special acrylic adhesive system where it excels in very cold and hot/humid temperature conditions.  Ideal for use as a vapor barrier on fibrous duct board for sheet metal ducts. Meets ASTM C1136.  FSK Tape Used as a closure system for fiberglass and mineral wool insulation systems that are faced with foil, to seal seams and joints on aluminum faced fiberglass duct board, and to provide a vapor barrier that assures the integrity of the system.