FSK 3320 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. Typical physical and performance characteristics include, thickness: 6.5 mils, adhesion to steel: 96 oz. in., tensile strength: 40 lbs. in width, elongation 2%, temperature use range (-20F to 175F) Individually wrapped rolls.Color: Silver

FSK 3320 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.