Lithium Silicates


Lithium silicate is an aqueous solution of silica (SiO2) and lithium alkali (Li2O) compounds. An important advantage of lithium silicates is that Stable, low-viscosity lithium silicate solutions can be prepared at much higher molar ratios than sodium and potassium silicate solutions. In the case of sodium silicate, a solution of 4.5 mole ratio with silica (SiO2) content at least 20% is highly viscous and unstable. Lithium silicate, on the other hand, has a silica concentration of 20% and a stable and low viscosity at room temperature even when the molar ratio is close to 8. Compared with sodium silicate or potassium silicate, it has low alkali content and low alkali solubility, so it does not easily dissolve by moisture and does not cause efflorescence. Adding lithium silicate to sodium silicate or potassium silicate can help improve water resistance and heat resistance. The molar ratio is calculated as follows:

Molar ratio = [Weight ratio of SiO2/ Li2O] × 0.497


Water-based metallic zinc inorganic coating

Concrete hardeners & densifiers


Product Specifications
pH 11-12
Specific gravity (20℃) 1.190-1.210
Li₂O(%) 2.0-2.2
SiO₂(%) 19.5-20.5
Molar ratio 4.6-4.8
Viscosity (cps, 20℃) Max. 50

Safety Information

Read the Material Safety Data Sheet before handling and using.

Do not freeze. Keep closed container.

Use personal protective clothing, gloves and chemical goggles.

Do not breathe spray mist. Do not taste or swallow.

Wash thoroughly after handling.

Promptly clean up spills or contaminated clothing with water.