Sodium silicate is widely used in casting in the machinery industry, grinding wheel manufacturing and metal preservatives; sodium silicate is used in the construction industry to make quick-drying cement, acid-resistant cement and waterproof oil, soil curing agent, refractory materials, etc.; silicate In agriculture, sodium can be used to make silicon fertilizer; in addition, as an adhesive, foam alkali is widely used as an adhesive for cardboard (corrugated paper) boxes.