A high-temperature water-based highly insulating refractory putty of binders and ceramic fibers in a ready-to-use pre-mixed form. Use to repair both hot face and backup insulation in forges, ovens, kilns, and boilers, to fill cracks, spaces, and gaps due to shrinkage. Originally manufactured as a pumpable Kaowool insulating refractory for industrial applications, its versatility has made it popular filling voids when high insulating properties are wanted. Dries hard, with good vibration resistance and strength. Able to handle full forge heats to 2500°F. Sold in convenient size jars and pails. White in color. Freeze-Thaw Stable. Like a plaster that becomes a high-temperature insulating solid.
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