FSK Facing Tape is a high performance reinforced insulation tape made of foil/scrim/kraft paper. It is UL Classified with an adhesive that contains mold inhibiting agents to ensure regulatory compliance. Additionally, our FSK has a special acrylic adhesive which excels in hot and cold temperatures. FSK Facing Tape is engineered as a vapor retardant tape to seal many types of insulation such as foil-faced insulation, bare sheet metal ducts and blanket-style fiberglass duct insulation. The variety of features: foil/scrim backing with an aggressive acrylic adhesive and a poly coated kraft paper liner create ease of application and long-term reliability.