Kiln Cement from Orton is a patching compound for filling cracks and holes in firebrick and on kiln shelves.
It can fill gaps in bricks that are 1/2” to 2” thick.
It can be used in temperatures up to 3,000 degrees F (1,645 degrees C).
The cement comes pre-mixed, and the consistency of the paste makes it easy to spread.
It bonds well and dries fast.
Once dry, it may be sanded to a smooth finish.