About This Material

Liquid Sodium Silicate, commonly known as Water Glass, is an aqueous alkaline solution of sodium oxide and silica with a typical SiO₂/Na₂O weight ratio of approximately 3.22. It exhibits a density of about 1.38 g/cm³ at 20°C (41° Bé) and moderate viscosity (~180 cP). The solution functions as an inorganic binder, adhesive, and chemical intermediate. Due to its high alkalinity and silicate content, it provides strong bonding properties, chemical resistance, and thermal stability in industrial and laboratory applications.

Traditional Homesteading Uses

Historically used as a binder in foundry sand molds, as an adhesive for paperboard and cartons, and as a sealing agent for porous mineral surfaces such as plaster and concrete. Also applied in ceramic processing as a deflocculant to control shrinkage and improve workability of clay bodies.

Modern Applications

Used in adhesives and binders, cementitious and construction materials, detergent manufacturing, drilling fluids, geotechnical stabilization, pulp and paper processing, textile treatment, water treatment systems, and as a precursor in the manufacture of other silicate-based chemicals. It also serves as a high-temperature inorganic bonding agent when applied between rigid substrates.

Storage Instructions

Store in tightly sealed, corrosion-resistant containers in a cool, dry, well-ventilated area. Protect from freezing and contamination. Avoid contact with acids and reactive metals.