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Lithium Polysilicate is an inorganic binder useful in surface modification, coatings, and polymer reinforcement. It is typically used in concrete hardeners to react with available calcium hydroxide and add density to the surface of the slab. Unlike other silicate Lithium Polysilicate can be lightly sprayed onto concrete surfaces and does not need to be scrubbed in. Other common applications include high performance zinc coatings, and marine/industrial applications where high pigment loading, and/or water and wear resistance is required.
Product Specifications
Density (g/cm³, lb/gal): 1.19, 9.9 Boiling Point (101 kPa) (°C / °F): 100 / 212 Melting Point (°C / °F): 0 / 32 Vapor Pressure (25°) mm Hg: 17.5 pH: 11
Primary Chemistry: Lithium Silicate
Features & Benefits
Alkaline pH (~11) Extremely compatible with powdered zinc for zinc rich primers Does not need to be scrubbed into concrete Little to no waste upon drying High silicate ratio results in lower levels of water in coatings Can be added directly to water emulsion floor waxes to improve slip resistance
Problems Solved
Porosity of concrete surfaces that leads to damage caused by exposure to moisture. Low density of highly porous surfaces. Inefficient application of concrete treatments caused by sodium and potassium silicate.
Applications
Typical concrete densifier formulations consist of about 10-15% Lithium Polysilicate and a silane. This formulations can be applied directly to concrete surfaces. Upon drying, excess densifier will become a dust that is easily removed without scrubbing or flushing.
LUDOX® Colloidal Silica is used in a wide range of processes to improve the and resiliency of building materials. Formulating LUDOX™ into concrete, coatings, adhesives, and sealants increases productivity and reduces cost while boosting the strength and consistency of the end product.