Sodium silicate concrete densifier liquid being applied to concrete floor surface with sprayer for hardening and dustproofing

Sodium Silicate Concrete Densifier WNF-Na-0340

Sodium Silicate Concrete Densifier is a cost-effective liquid concrete hardener & penetrating sealer for all cement surfaces. It reacts with free calcium hydroxide to form compact calcium silicate hydrate gel, densifying porous concrete, stopping dust emission and improving wear & chemical resistance. Odourless, non-flammable and compatible with new or old concrete floors, widely used in…

Model Numbe

WNF-Na-0340

Other Names

Sodium Silicate Floor Densifier, Sodium Silicate Concrete Hardener, Sodium Silicate Concrete Sealer

Molecular Formula

Na₂O·nSiO₂

CAS No.

1344-09-8

EINECS No.

215-687-4

Grade Standard

Industry Grade

Place of Origin

Guangzhou,China

Product Details

What is Sodium Silicate Concrete Densifier ?

 

Sodium silicate concrete densifier is a water-based inorganic silicate flooring treatment material widely used in global concrete flooring renovation and new construction industries. As a professional concrete strengthening solution, it serves as a durable hardening and sealing agent for all cement-based floor substrates.
 
Sanlee Chemical is a professional sodium silicate concrete densifier manufacturer and reliable supplier, providing high-purity, stable-performance sodium silicate floor densifierproducts with fixed chemical modulus and consistent batch indicators. Our premium sodium silicate concrete hardenerWe supports customized formulas to meet diverse construction and flooring project requirements, delivering quality-guaranteed solutions for global bulk buyers who purchase bulk sodium silicate concrete sealer for industrial and commof concrete floor treatment matercial floor projects.
 
This industrial-grade sodium silicate densifier is produced through precise raw material proportioning, high-purity purification, low-temperature concentration and multi-stage filtration processes. It features strong concrete permeability, stable chemical reactivity, fast curing response and zero residual impurities. The finished product is colorless, odorless and easy to construct, with excellent long-term floor strengthening, dust-proof and anti-seepage effects, serving as a core functional material for high-quality concrete floor finishing and protection.

 

Introduction to Sodium Silicate Concrete Densifier

 

Sodium silicate densifier is a specialized inorganic penetrating flooring agent developed for cement-based concrete substrates. Different from ordinary surface coatings, it relies on deep chemical penetration to realize permanent floor densification and hardening, rather than simple surface film formation, making it far more durable than traditional floor treatments.
 
Under normal temperature and pressure conditions, the product appears as a transparent and clear liquid with good fluidity and water solubility. It features outstanding penetration, permanent hardening performance, excellent abrasion resistance and water repellency. Compared with traditional floor paint and epoxy coatings, this sodium silicate concrete sealer will not peel, yellow or delaminate, requires extremely low later maintenance, and boasts safer transportation, storage and construction with no volatile harmful substances.
 
Our standard sodium silicate floor densifier adopts a scientifically optimized silica-sodium oxide ratio, with moderate reaction speed and powerful chemical activity. It can fully react with free lime and calcium hydroxide inside concrete, completely fill internal micro-pores and capillary gaps, and form dense and firm CSH gel structures. Suitable for almost all new and old concrete floor scenarios, it has won wide recognition from global flooring contractors, engineering companies and distributors for its stable quality, high cost performance and flexible bulk packaging solutions.

 

CAS Number

 

CAS No.: 1344-09-8

 

Chemical Formula

 

General chemical formula: Na₂O·nSiO₂; Our sodium silicate concrete hardener adopts a precisely calibrated molar ratio of silicon dioxide and sodium oxide. The uniform molecular structure ensures stable penetration and curing reaction effects in every construction scenario, completely avoiding performance fluctuations caused by inconsistent raw material ratios, and ensuring unified floor hardening and densification effects for all projects.

Product Display

Sodium silicate densifier clear liquid being applied to concrete floor for permanent hardening sealing and dustproofing
Sodium silicate densifier storage in dry warehouse with sealed pails and drums at 4-49°C temperature controlled environment
Sodium silicate densifier shipping with sealed drums and pails being loaded onto truck for export delivery

Technical Specifications

ItemsUnitProduct parameters
Apperance/

Colorless and transparent liquid

Modulus(n)/3.3-3.4
Silicon Dioxide(SiO₂) Content%%25.91-28.35
Sodium Oxide(Na₂O) Content%8.1-8.6
°Bé, 20°C°38±1
pH Value (1% Aqueous Solution, 25℃)/10.8-11.8
Feppm<100

Water Insoluble Substances

%

<0.03

Deep Penetration & Permanent Floor Densification

Different from traditional surface coatings that only cover the floor surface, this product features excellent permeability to penetrate deep into concrete interior.

Excellent Abrasion Resistance & Durable Protection

After construction and curing, the concrete floor forms a high-density, high-hardness integral structure, which greatly improves surface compressive strength, scratch resistance and wear resistance.

Waterproof, Anti-Fouling & Low Maintenance Performance

The compact gel structure formed by chemical curing effectively blocks internal water seepage channels, endowing the concrete floor with excellent water repellency and impermeability.

Eco-Friendly Formula & Wide Compatibility

Formulated with pure inorganic silicate materials, the product is zero-VOC, non-toxic, odorless and non-flammable, fully compliant with global environmental protection construction standards

Lithium Silicate Floor Densifier Application

As our flagship concrete flooring treatment product, the sodium silicate concrete densifier integrates multiple advantages of floor densification, hardening, dust prevention, waterproofing and anti-aging. With excellent penetration curing, abrasion resistance and impermeability, the sodium silicate densifier covers comprehensive flooring application fields, with detailed usage scenarios as below:

• Industrial & Commercial Concrete Flooring Industry

 
As the core special material for concrete floor strengthening and renovation, sodium silicate floor densifier is widely used in new concrete floor curing and old floor renovation projects. This sodium silicate concrete hardener can deeply penetrate 1-5mm into the concrete interior, chemically react with free alkaline substances in cement, generate insoluble and high-strength CSH gel, effectively fill concrete micro-pores, compact the floor structure, and greatly improve the surface hardness, compressive strength and abrasion resistance of concrete floors. It
thoroughly solves common floor problems such as dusting, sanding, peeling and low hardness, ideal for industrial workshops, warehouses and logistics parks.
 

• Parking Lot & Public Infrastructure Flooring

 
Sodium silicate concrete sealer is an ideal protective material for outdoor and indoor parking lots, underground garages, municipal road floors and public venue concrete floors. After construction, it forms a permanent dense waterproof and anti-fouling layer inside the concrete, which can effectively resist the erosion of rainwater, vehicle oil stains and daily wear. It prevents concrete efflorescence and weathering, extending the service life of public infrastructure floors with minimal maintenance.
 

• Polished Concrete Decorative Flooring Field

 
This sodium silicate densifier is an essential supporting material for high-gloss polished concrete floors. It can effectively improve the compactness and glossiness of concrete substrates, making the ground present a uniform marble-like gloss after polishing. The hardened floor features excellent anti-scuff performance, dust-free operation and easy daily maintenance, widely used in shopping malls, office buildings and exhibition halls for integrated decorative and durable flooring solutions.
 

• Construction Engineering & Ground Curing Projects

 
In building construction, bridge engineering and underground engineering, sodium silicate concrete hardener is used for rapid curing and reinforcement of concrete base layers. It can accelerate concrete hydration speed, improve overall compactness and impermeability, and enhance anti-corrosion and anti-freezing performance of building foundations and tunnel walls, effectively avoiding structural water seepage and weathering damage.
 

• High-Traffic & Heavy-Duty Floor Scenarios

 
For heavy-duty floor environments with frequent mechanical rolling and heavy object stacking, sodium silicate floor densifier provides permanent floor protection. The compact gel structure formed by chemical reaction can withstand long-term high-load friction and impact, avoiding floor sanding and pit formation, perfectly suitable for freight terminals, machinery factories and heavy industrial flooring scenarios.
 

• Environmental Protection & Dust Control Engineering

 
As an environmentally friendly inorganic flooring agent, sodium silicate concrete sealer features zero VOC, non-toxic and pollution-free, complying with global environmental construction standards. It can permanently solidify loose concrete surface particles and suppress ground dust, ideal for construction site floors and industrial open-air grounds with no secondary pollution risks.
 
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Packaging and Storage

Packaging

Our liquid sodium silicate concrete densifier adopts standard industrial packaging, including 20 liter plastic drums, 200 liter plastic drums and 1000kg IBC tote tanks, and supports customized packaging according to customer needs. All packaging containers are sealed and leak-proof, which can effectively avoid product leakage and pollution during transportation. As a professional sodium silicate supplier, we support flexible packaging and bulk shipping for global customers.

Storage

Store the industrial sodium silicate concrete densifier in a cool, dry and ventilated warehouse, keep away from high temperature, direct sunlight and freezing environment. The ambient storage temperature is controlled at 5℃-35℃. Sealed storage is required after opening to prevent water evaporation and surface crystallization. Under standard storage conditions, the product shelf life is 12 months. It is forbidden to mix with acid substances to avoid chemical reaction and product deterioration.

Frequently Asked Questions

How does sodium silicate floor densifier work?

It penetrates deep into concrete pores and chemically reacts with free lime and calcium hydroxide in cement. The reaction generates stable CSH gel that fills micro-pores, compacts the loose concrete structure, and achieves permanent floor densification and hardening without forming surface films.

What types of concrete floors is the sodium silicate concrete densifier suitable for?

It fits almost all cement-based concrete floors, including industrial workshop floors, warehouse floors, parking lots, underground garages, commercial mall polished concrete floors, and construction engineering base floors, applicable for both new concrete curing and old floor renovation.

How long does the sodium silicate concrete densifier curing and hardening effect last?

The chemical reaction forms an integral dense concrete structure instead of a removable surface coating. The hardening and densification effect is permanent and will not peel, yellow or fail, greatly extending the service life of concrete floors with minimal later maintenance.

Can sodium silicate concrete sealer resist water and oil stains?

Absolutely. The compact CSH gel structure effectively blocks concrete internal seepage channels, endowing the floor with excellent water impermeability and oil stain resistance. It prevents rainwater erosion, ground efflorescence and daily pollutant adhesion, keeping floors clean and durable.

Is professional construction equipment required for application?

No complicated equipment is needed. The product has good fluidity and water solubility, which can be evenly applied by roller, sprayer or flat mop. It features fast construction speed and simple operation, suitable for both engineering team construction and conventional floor renovation projects.

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