Rutland Refractory Cement is a sodium silicate based, alkaline fire clay ready-mixed refractory mortar. It is an air-set and heat-cure product. Subjected to high heat for several hours, it loses its water solubility and makes a fire-cured bond stronger than the bonded firebrick or flue tile. Useful for setting and bonding firebrick in the firebox chambers of fireplaces, furnaces,stoves, and incinerators, or for setting flue tile with thin, 1/16" to 1/8"glue line bonds. Contains no asbestos. Easy to trowel.

Flue caps recommendedon newly built chimneys mortared with Refractory Cement. Not recommended where fire-cured adhesion to metal is desired. For this purpose use Rutland STOVO® or Black Furnace Cement. Passes Flammability test ASTM E 136-79, Standard Test Method for Behavior of Materials in Vertical Tube Furnace at 750C (1382F). One gallon covers approximately 45 firebricks, 4 1/2" x 9".