Liquid Sodium Silicate (Water Glass) Solution (30–40%)
Liquid Sodium Silicate, also known as Water Glass, is a multi-purpose product with a variety of applications. It has a weight ratio of 3.22 and a 40 Baume density. It is commonly used as a foundry-grade, ceramic-grade, and carton adhesive-grade product. It can also be used as a deflocculant to prevent shrinkage of greenware, for surface application to create an instant antique look, to solidify and create an instant solid sand mold for metal castings, as a sealer for plaster and concrete surfaces, and as a treatment for wood to make it water-resistant and insect-free. When applied as a thin layer between surfaces to be bonded, it can also be used as an extraordinarily high-temperature adhesive and bonding agent. Note that liquid sodium silicate has a high alkaline level of 11.3 pH.
Product Specifications
| Chemical Name | Sodium Silicate Solution |
| Synonyms | Water Glass, Sodium Silicate Solution |
| CAS Number | 1344-09-8 |
| Wt. Ratio SiO2/Na2O | 3.22 |
| %Na2O | 8.9 |
| %SiO2 | 28.7 |
| Density @ 68°F (20°C) °Be' | 41.0 |
| Density @ 68°F (20°C) lb/gal | 11.6 |
| Density @ 68°F (20°C) g/cm3 | 1.38 |
| pH | 11.3 |
| Viscosity | 180 cP |
| Characteristics | Syrupy Liquid |
| Grade | Foundry-grade, ceramic-grade, carton adhesive-grade |
Applications and Benefits:
- Used as a foundry-grade binder for instant solid sand molds in metal castings.
- Can be diluted to lower concentrations as required
- Used in ceramic applications as a deflocculant to help prevent greenware shrinkage.
- Suitable for carton adhesive applications and other bonding uses.
- Can be applied to surfaces to create an instant antique look.
- Used as a sealer for plaster and concrete surfaces.
- Can be used as a wood treatment to improve water resistance and help deter insects.
- Functions as a high-temperature adhesive and bonding agent when applied in a thin layer between surfaces.
- Used in adhesives and binders, agriculture, cements and construction materials, detergents, drilling, geotechnical and mineral processing, manufacture of other chemicals, pulp and paper, textiles, and water treatment.
Caution:
Liquid sodium silicate has a high alkaline level of 11.3 pH. Use care when handling this product and wear gloves and eye protection to prevent the possibility of burns.