Venture Tape - 2 mil heavy duty, high strength aluminum foil coated with a specially formulated pressure sensitive acrylic adhesive system. Superior adhesion and conformance for use with fiberglass ductboard systems. Performance and materials guaranteed to meet or exceed UL181A-P quality standards; also meets the requirements of UL181B-FX, flexduct standard. Listed 89FL. Applications: Primarily used for sealing fiberglass ductboard and flexduct. May also be used on metal connections, flexible duct, flexible duct connections to ductboard, and metal duct.