Meets ASTM E 814/UL 1479 and UL 2079 specifications. Classified for sealing fire-rated, noncombustible service penetrations and construction joints in horizontal and vertical fire separations. Elastomeric - capable of +-25% dynamic joint movement. Tested for up to a 4 hour F-rating at independent laboratories and is approved for both through penetrations and joint applications. Suggested uses: Classified for sealing fire-rated service penetrations and construction joints in horizontal and vertical fire separation. Penetrations: Steel, copper, and EMT pipe, fiberglass pipe insulation, construction joints, cables, building assemblies: Concrete and CMU or gypsum wallboard. Service temperature up to 300 deg. F. Color is gray. 10.1 Fl. Oz. cartridge.