This series of products mainly include clay, high alumina and corundum. Ultrafine powder, high-quality clay and inorganic salts such as phosphoric acid, phosphate, aluminum sulfate, water glass are used as binders, together with additives such as plasticizers, water-retaining agents, water-reducing agents, and preservatives. It has the advantages of good viscosity, high bonding strength, thin mud seam, and good construction performance. The appropriate bonding time can be adjusted according to the construction needs. Applicable to all thermal kiln masonry refractory bricks.