Evonik Ultrasil VN3 is a high-performance precipitated silica used as a white reinforcing filler for rubber. It greatly improves hardness, tensile strength, tear resistance and abrasion resistance, with high transparency and processing stability for various rubber products.
High reinforcement - greatly improves rubber hardness, tensile and tear strength
Excellent abrasion resistance - enhances product wear life and service life
High transparency - provides good clarity for light-colored rubber products
Stable processability - uniform dispersion, no agglomeration, suitable for standard mixing
Wide compatibility - works well with natural and synthetic rubber systems
Tires – improves strength, wet grip and rolling resistance
Shoe soles – enhances wear resistance, tear resistance and transparency
Wires & cables – optimizes insulation mechanical performance
Industrial rubber goods – used in seals, dampers and hoses
Light-colored rubber products – replaces carbon black for white/clear items
| Brand | Evonik |
| Product Type | Precipitated Silica / Silicon Dioxide |
| Appearance | White powder |
| BET Surface Area | 165–195 m²/g |
| pH Value | 5.4–7.0 |
| Loss on Drying | 4.0–7.0% |
| SiO₂ Content | ≥99% |
| CAS No. | 7631-86-9 / 112926-00-8 |
| Packing | 25kg/bag |
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