Kiln Cement

Cracks and chips in kiln refractory can be permanently sealed with AMACO® Kiln Cement. Mix water with the cement for a smooth, plastic consistency.
The prepared cement is ready for immediate use. When mixed with coarse grog or pieces of refractory, cement may be used to repair large holes in firebrick. WARNING: Do not allow direct contact with elements and electrical wiring. 454 g.

Multiple use: As long as the kiln cement is sealed well, it should be able to stay in the liquid form and be used again when needed. To further the seal,  put the container in a plastic bag that zips at the top to help prolong the life of the kiln cement if it is something they do not use often.