Precipitated Silica
Produced through controlled chemical precipitation to achieve high surface area, fine particle structure, and consistent performance, Precipitated Silica functions as a reinforcing, thickening, and anti-caking agent in rubber, coatings, and polymers.
Product Overview: Synthetic Precipitated Silica
Precipitated Silica is a high-purity synthetic amorphous silicon dioxide produced through a precision-controlled chemical precipitation reaction of sodium silicate and acid. Characterized by high specific surface area (BET 150–220 m²/g), controlled nano-porosity, and uniform aggregates, it operates as an active reinforcing filler, matting flatting agent, rheology controller, and anti-caking free-flow agent.
In tyre and technical rubber goods, it forms robust silanol hydrogen bonding with polymers, significantly enhancing tensile strength, tear resistance, and wet skid traction while reducing rolling resistance. In coatings, inks, and synthetic leather, it offers controlled matting and thixotropic viscosity control; while in food, feed, and powdered chemicals, its porous structure absorbs moisture to maintain free-flowing bulk powders.
Key Benefits
High Surface Area
Supports strong interaction and bonding with formulation polymers, resins, and elastomers.
Good Reinforcement
Helps improve tensile strength, tear resistance, and mechanical durability in rubber.
Rheology Control
Supports pseudoplastic viscosity and flow management, preventing pigment settling in liquid formulations.
Anti-Caking Performance
Helps maintain free-flowing characteristics and prevents moisture caking in powder systems.
Controlled Particle Structure
Promotes consistent dispersion, low shear thinning, and predictable processing.
Good Absorption Capacity
Supports high liquid-carrying capacity for active oils, vitamins, and moisture management.
Applications
Green Tyre Compounds & Rubber Soles
Paints, Inks & Wood Finish Matting Agents
High-Performance Adhesives & Sealants
Plastics & Masterbatch Processing
Technical Specifications
| Parameter | Rubber Reinforce | Carrier Premium | Flatting Agent | Toothpaste Grade | Adhesives |
|---|---|---|---|---|---|
| Silica (SiO2) | 98.5% | 98.0% | 98.0% | 97.5% | 97.0% |
| pH (5% Slurry) | 6.8 | 7.0 | 6.5 | 7.2 | 6.2 |
| DBP Absorption | 230 ml/100g | 260 ml/100g | 180 ml/100g | 110 ml/100g | 200 ml/100g |
| Loss on Drying | 5.2% | 5.5% | 6.0% | 4.8% | 5.8% |
| Loss on Ignition | 4.5% | 4.8% | 5.2% | 4.2% | 5.5% |
| Surface Area (BET) | 185 m2/g | 210 m2/g | 150 m2/g | 80 m2/g | 160 m2/g |
| Soluble Salts | < 0.8% | < 1.0% | < 1.0% | < 0.5% | < 1.2% |
| Avg Particle Size | 12 µm | 15 µm | 4 µm | 8 µm | 10 µm |
Why Choose Us?
Controlled Chemical Synthesis
State-of-the-art precipitation reactors ensure narrow pore diameter and uniform aggregate cluster size.
High Reinforcing BET Surface
Tailored BET specific surface area (150–220 m²/g) engineered for high silane coupling efficiency.
Consistent Flatting Efficiency
Delivers high matting efficiency with crystal-clear film transparency and velvet tactile touch in coatings.
De-Aerated Compact Packaging
Supplied in de-aerated, moisture-proof paper bags and shrink-wrapped pallets for dust-free handling.