Lithium silicate

Ⅰ. Product Overview

Lithium Silicate Solution, with the chemical formula Li₂O·mSiO₂·nH₂O, is a colorless, transparent, odorless, and mildly alkaline aqueous solution. It is a high-performance inorganic silicate material widely used in construction, protective coatings, metal treatment, and specialty industrial applications.

Typical Properties

Ⅱ. Key Performance Features

1. Self-Curing Film Formation with Permanent Water Resistance

Lithium silicate naturally cures at room temperature to form a dense inorganic coating that becomes permanently water-insoluble after drying. The cured film provides outstanding waterproof and moisture-resistant performance.

2. Excellent High-Temperature Resistance

The cured inorganic film withstands temperatures of up to 1,000°C without burning, producing neither flames nor smoke, making it suitable for fire-resistant applications.

3. High Hardness and Superior Wear Resistance

The cured surface exhibits exceptional hardness, excellent abrasion resistance, and strong scratch resistance, significantly improving substrate durability.

4. Outstanding Weatherability and Corrosion Resistance

Lithium silicate coatings offer excellent resistance to UV radiation, salt spray, acids, alkalis, and harsh environmental conditions, ensuring long-term outdoor durability.

5. Environmentally Friendly and Non-Toxic

As a water-based inorganic material, lithium silicate contains no volatile organic compounds (VOC), no harmful emissions, and is environmentally friendly.

6. Excellent Penetration and Chemical Reactivity

Lithium silicate penetrates deeply into concrete and natural stone, where it reacts with free calcium and magnesium ions to form insoluble calcium silicate hydrates (C-S-H). This chemical reaction densifies the substrate, enhances hardness, seals pores, and improves surface gloss.

Ⅲ. Major Applications

Lithium silicate Applications：

1. Concrete Densifiers and Sealers (Primary Application)

(1). Industrial Flooring

Ideal for factories, warehouses, parking garages, logistics centers, and manufacturing facilities.

Benefits:

▪ Increases surface hardness by 3–5 times

▪ Excellent wear resistance

▪ Dust-proof

▪ Water-resistant

▪ Long-lasting gloss and durability

(2). Commercial Flooring

Suitable for supermarkets, shopping malls, exhibition halls, retail stores, and public buildings.

Benefits:

▪ High-gloss finish

▪ Easy maintenance

▪ Excellent durability

▪ Improved appearance

(3). Airports, Roads and Bridges

Provides long-term protection against:

▪ Water penetration

▪ Freeze-thaw cycles

▪ Salt attack

▪ Premature concrete deterioration

▪ Significantly extends the service life of concrete infrastructure.

(4). Stone Protection

Suitable for marble, granite, terrazzo, and other natural stone materials.

Benefits:

▪ Increased surface hardness

▪ Enhanced gloss

▪ Stain resistance

▪ Water repellency

▪ Reduced permeability

2. Inorganic Zinc-Rich Protective Coatings

A premium inorganic binder for heavy-duty anti-corrosion coating systems.

Steel Structure Protection

Recommended for: Bridges, Ports, Marine structures, Offshore platforms, Oil and gas pipelines

Performance:

▪ Salt spray resistance ≥ 5,000 hours

▪ Service life exceeding 20 years

3. High-Temperature Primers

Suitable for:Chimneys, High-temperature industrial equipment, Engine components

Advantages:

▪ Heat resistance above 600°C

▪ Non-combustible

▪ Excellent thermal stability

4. Metal Surface Treatment

Anti-Corrosion Protection

Suitable for steel, cast iron, and non-ferrous metals.

Benefits:

▪ Thin protective coating

▪ Strong adhesion

▪ Long-term corrosion protection

5.Electroplating and Passivation Sealers

Applicable to galvanized, aluminized, and chrome-plated components.

Advantages:

▪ Chromium-free and environmentally friendly

▪ Improved corrosion resistance

▪ Enhanced gloss retention

6. Decorative Metal Protection

Suitable for copper, aluminum, zinc, and decorative metal products.

Benefits:

▪ Anti-oxidation

▪ Color retention

▪ Long-lasting surface brightness

7. Architectural and Functional Coatings

Inorganic Interior and Exterior Wall Coatings

Ideal for hospitals, schools, residential buildings, and public facilities.

Features:

▪ Class A fire resistance

▪ Mold resistance

▪ Washability

▪ Excellent vapor permeability

8. Waterproof and Moisture-Resistant Coatings

Suitable for:

▪ Basements

▪ Bathrooms

▪ Swimming pools

▪ Underground structures

Provides permanent waterproof protection through penetrating crystallization.

9. Glass and Optical Coatings

Used for:

▪ Photovoltaic glass

▪ Display panels

▪ Lighting products

Features:

▪ Anti-reflective

▪ Anti-glare

▪ High light transmittance

10. Adhesives and Binders

Refractory Materials

Suitable for refractory bricks, ceramic products, furnaces, and high-temperature industrial equipment.

Benefits:

▪ Excellent high-temperature bonding

▪ High mechanical strength

▪ Outstanding thermal stability

11. Wood, Paper and Fiber Products

Applicable to:

▪ Corrugated cartons

▪ Fiberboards

▪ Insulation boards

Provides improved:

▪ Water resistance

▪ Moisture resistance

▪ Bonding strength

12. Welding Electrodes and Fluxes

Used as a binder for premium welding electrodes.

Advantages:

▪ Stable arc performance

▪ Deoxidizing capability

▪ Improved weld strength and quality

Other High-End Applications

13. Photovoltaic and Semiconductor Industries

Suitable for:

▪ Silicon wafer cleaning

▪ Surface passivation

▪ Electronic packaging

Characteristics:

▪ High purity

▪ Low sodium content

▪ Low impurity levels

14. Battery Materials

Used as an inorganic binder for lithium battery electrode materials.

Benefits:

▪ Excellent thermal stability

▪ Enhanced structural stability

▪ Improved battery cycle life

15. Aerospace Industry

Applied in lightweight anti-corrosion coating systems.

Advantages:

▪ Excellent corrosion resistance

▪ High-temperature stability

▪ Lightweight protection

Ⅳ. Product Summary

Lithium Silicate Solution is a high-performance inorganic silicate material distinguished by its self-curing film formation, permanent water resistance, exceptional hardness, superior wear resistance, high-temperature stability, excellent weatherability, corrosion resistance, and environmentally friendly characteristics.

It is widely used in concrete densifiers and sealers, anti-corrosion coatings, metal surface treatment, architectural coatings, refractory materials, and high-performance industrial binders. Its outstanding durability makes it particularly suitable for demanding applications requiring long-term water resistance, abrasion resistance, corrosion protection, and thermal stability.

Lithium silicate Packaging

25 kg/20 L drum, 250–300 kg/200 L drum, 1300 kg/1000 L IBC tote, and tanker truck.

Lithium silicate Storage Conditions

Store in a sealed container in a well-ventilated, dry indoor area away from direct sunlight. Transport and store at temperatures between 5°C and 35°C. 

Avoid prolonged exposure to air during storage.

Our factory offers OEM manufacturing services and can customize sodium silicate products in various moduli and concentrations to meet your specific needs.