Semi-dry method gun mix for coal oven reparing

A reparing material for reparing the coke oven by spraying the semi-dried it is prepared from the raw Al-Si material chosen from mullite, high-Al alumine, etc. high-Al cement or calcium aluminate cement, soft clay, kyanite, Al2O3 and/or SiO2 powder, and naphthalenesulfonic acid-formaldehyde condensate. Its advantages are high adhesion, strength, heat shock resistance and antiwear performance, and low cost.