Abstract: The silica gunning material is made by silica material with high content of SiO2 and additives such as silica powder and clay. It has the following advantages，such as good fluidity， low spring-back rate，high strength and good high temperature performance. The utility model is used for hot-state wet gunning of the damaged wall of the pot calciner，which has good effect and prolongs the service life of the pot calciner.

Key words: Pot calciner, Silicon gunning material, Research