Meeco Refractory Cement

A pre-mixed fiber-reinforces, high temperature silicate mortar for setting, coating or repairing firebrick. Used extensively as the mortar between firebricks when building fireplace fireboxes. Will withstand temperatures up to 3000°F. The ideal high-heat sealant for masonry-to-masonry joints less than 1/4″ thick Not suitable for outdoor use.
 
Comes in 1 Gallon size