Polyken 223 Multi-Purpose Duct Tape is a high adhesion duct tape for a broad range of applications. Applications include sealing duct work; general purpose packaging; holding insulation materials in place; and creating a condensation barrier in refrigeration assemblies. Polyken 223 Duct Tape has good tensile strength, good adhesion and tack, is conformable, and will not twist or curl during application. It is tested in accordance with UL723.