Sodium Silicate Liquid Modulus 3.0 Be° 50

Binder Demand in the Foundry Industry   Casting is the fundamental process of the equipment manufacturing industry, and the choice of molding (core-making) materials directly determines casting quality and production costs. Sodium Silicate, as an inorganic binder, has a long history of application in the foundry industry. In the 1950s, the sodium silicate CO₂ hardening process was widely used, but this process suffered from high Sodium Silicate addition, poor collapsibility, and inability to reuse used sand, resulting in waste of silica sand resources, massive discharge of solid waste, ecological damage, and rough casting quality, leading to its gradual phase-out.   Technical Breakthrough of Ester-Hardening New Type Sodium Silicate Self-Hardening Sand   In 1999, the ester-hardening new type sodium silicate self-hardening sand emerged, completely transforming the困境 of traditional sodium silicate sand. This process uses Sodium Silicate as the binder and organic ester as the hardener fo…