Semi-Reinforcing Filler for Better Wear Resistance
Rubber Grade Silica Powder is a high-performance semi-reinforcing filler. It is different from cheap calcium carbonate. Our powder offers real improvement in strength and wear. Thanks to its high hardness, it bonds well with rubber molecular chains. This raises the tensile strength and tear resistance of the vulcanizate. In one case, an off-the-road tire maker used our product. They saw a 15% reduction in tread wear. This is clear proof of its value.
Consistent Dispersion for Stable Quality
Rubber makers worry about poor dispersion. Poor dispersion can cause unstable product quality. Our Rubber Grade Silica Powder comes with strict surface polarity and fineness control. It wets out fast and spreads evenly in an open mill or an internal mixer. This cuts mixing time. It also ensures the physical properties of the final rubber are consistent. With our 20,000-ton annual capacity, we can supply your plant with a steady flow of product for the long term.
Technical Data for Rubber Compounding
|
Parameter |
Typical Value / Range |
Test Standard |
|
Main Content (SiO₂) |
≥ 99.3% |
Chemical Analysis |
|
Mohs Hardness |
7 |
Scratch Test |
|
Particle Size (D50) |
5μm - 15μm (Customizable) |
Laser Diffraction |
|
Specific Surface Area |
2.5 - 4.5 m²/g |
BET Method |
|
Loss on Ignition |
≤ 0.50% |
High-Temperature Ignition |
|
Moisture Content |
≤ 0.30% |
Oven Drying Method |
|
Residue on 325 Mesh |
≤ 0.01% |
Sieve Analysis |
Broad Applications in Rubber Goods
Rubber Grade Silica Powder serves many rubber products. In silicone rubber, it boosts mechanical strength while keeping some clarity. In tires and conveyor belts, it improves tear and cut resistance. For seals, rollers, and pads, it makes the parts more stable and resistant to compression set. It is also good for shoe soles, giving better wet grip and wear. We accept full custom orders. You can ask for a special particle size or even a silane-treated version. This makes our product a highly adaptable material for your needs.
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