Features: * Use to cast a solid stove bed, repair firebrick, or cast it into custom shapes tailored to the exact needs of the fireplace or stove * When dry material is mixed with water, it chemically sets and dries brick hard * One 12.5 lb gallon container mixed with one quart of water will cast a 12 in. x 12 in. x 1-1/2 in. square * Easy-to-follow foolproof direction on container * Properly cast and dried, it withstands up to 2200 degrees Fahrenheit What"s In The Box: * Rutland 600 Refractory Cement - 12.5-lb.