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Precipitated Silica Rubber Grade

Overview - Precipitated Silicas

Precipitated Silicas

Advsil® Precipitated Silica Rubber Grade

Chemical name: SILICON DIOXIDE
Molecular formula: SiO2 * nH2O
Chemical structure: O=Si=O

A high dispersion, high purity precipitated silica. Can significantly improve the wear resistance of the rubber compound, resistant to flexion performance, heating oxidation, instead of a large number of carbon black for high-performance tires, which can effectively reduce tire rolling resistance and reduce fuel consumption and improve the wet skid resistance and safety performance.


1.Tyre industry: Reduce tire rolling resistance,increasing tire grip in the wetlands and icy ground.
2. Shoe industry: Rubber out soles reinforcing filler,the performance of reinforcing close to the carbon black,it can be used for light-colored rubber products,transparent appearance and excellent wear resistance.
3. Industry rubber silicone products:Applied to the rice roller,hoses,rubber rollers,belts,oil seals, etc.,It can improve tear resistance, abrasion resistance,and extend the life of the products.

Technical Index



Drying loss(%), 105℃ 4.0 - 8.0
Ignition loss(%), 900℃ <7.0
SiO2(%) ≥ 96
Sodium Sulphate(%) ≤ 0.8
DBP absorption(cm3/g) 2.2 - 2.5
BET Specific Surface Area, m2/g 165±5
45um Sieve residue(%) ≤ 0.5
pH Value 5.0 - 8.0
Total Fe, mg/kg ≤ 200

Note: Above index is from general products for reference, actual products would be a little different.
Packing: Available in 20KG bag, or other packing on request.
Transport with non-hazardous chemicals. Store in original container only.
Keep container tightly closed and store in cool, well ventilated place. Shelf life: 3 years.