Thermally conductive for heating or cooling efficiency and provides water proofing barrier and air leak protection. Premium Grade; Aluminum backed tape features acrylic adhesive; Flame resistant, heat and light reflective; Improves visibility by magnifying light sources; Resists ultraviolet degradation ensuring long lasting performance; Meets UL 723, Class L File R 7311 and UL 764c; Data Sheet. Alternate UPC: 0.