'SAIRBOND is a dry, air-setting high-strength mortar product than can be thinned by adding additional water.
It is especially useful for laying fireclay, super duty and 50% alumina firebricks (including high-fired) for low temperature incinerators, air heaters, cyclones, cement pre-heaters, fluid bed reactors, roasters, and vertical shaft furnaces. Rated at 2,910 degrees F. Manufactured by HarbisonWalker International. Available in 55 lb. bags. You'll need 1.4 gallons of water per 55 lb bag for troweling, 1.9 gallons for dipping.