Precision casting, water glass, and silica sol casting, which one has higher precision

The wax of water glass is very soft, and the wax of silica sol is very hard. The product surface of silica sol is better than that of water glass.

The difference between the two is only in the quality of molds manufactured. Silica sol molds are more suitable for precision casting. The manufactured products have good surface smoothness, small deformation, small shrinkage ratio, and precise dimensions without secondary processing.

However, the products made of silica sol are basically small products, and the products made of water glass lost foam are relatively large. The difference between the two is only in the quality of molds manufactured. Silica sol molds are more suitable for precision casting. The manufactured products have good surface smoothness, small deformation, small shrinkage ratio, and precise dimensions without secondary processing. The wax of water glass is very soft, and the wax of silica sol is very hard. The product surface of silica sol is better than that of water glass. The principle is the same, but the wax, surface sand and adhesive used by the two are different.