RectorSeal® Pyroseal" Furnace and Retort Cement, 12 lb, Composition: Sodium Silicate, Calcium Magnesium Silicate, 1.33 cu-ft Coverage, Gray, 1.43 Specific Gravity
PYROSEAL" is a non-asbestos furnace and retort cement. It is smooth, creamy, easy spreading and sticks where you put it. PYROSEAL" exhibits superior performance in bonding, controlled expansion and contraction to avoid shrinking and cracking. It is easy to apply even in low, below freezing temperatures.