A 1-component, noncombustible draft, smoke, and fire blocking sealant, designed to resist high-temperatures and smoke passage in nonrated residential construction. It is used to seal interior construction voids around wires, pipes, HAC ducts and vents, in wood or steel framed nonrated construction. May also be used around chimney, fireplace, and other framing gaps. Meets ASTM E136 current 2003 International Building Code (IBC), 2003 International Residential Code (IRC), 2003International Residential Mechanical Code, 2003 International Fuel Gas Code, and NFPA 5000 smoke and fireblocking requirements. Water-based product, should not be exposed to water. Gray in color. 10.1 Fl. Oz. cartridge. Service temperature1380 deg. F. (750 deg. C).