Furnace Cement; Applicable Standard OSHA; Type Heavy; Container Size 1 Gallon; Color Dark Gray/Black; MSDS Number 7330E; Area of Application Firebox, Boiler, Stove, Flue Pipe, Kilns, Chimneys, Duct, Combustion Chamber, Masonry Surface, Wood Burning Heating System; Relative Density 1.95 +/-0.03; Flash Point Greater Than 212 Deg F; pH Value 11 to 13; Packaging Quantity 4 per Carton; Weight 15.24 Lb