Evonik Sipernat 2200PC is a spherical particulate precipitated silica imported from Germany, designed for silicone rubber reinforcement and liquid immobilization. It features high absorption, low dust and excellent processability, suitable for HTV silicone rubber, rollers and packaging with high transparency, low yellowing and strong mechanical properties.
Spherical particle structure - Uniform dispersion, low dust, clean processing
High absorption capacity - Efficient liquid loading, high bulk density powder
Excellent silicone reinforcement - Better tensile & wear than ordinary silica
High transparency & low yellowing - Clear silicone, no yellowing & no whitening
Stable purity control - Precise particle size & surface area for consistency
HTV silicone rubber - Improve strength, transparency and yellowing resistance
Industrial rubber rollers - Enhance wear resistance and service life
Packaging & sealing materials - Boost elasticity and sealing performance
Liquid solid carrier - Produce high bulk density, dust-free powder
High-performance rubber products - Better properties than ordinary silic
| Product Type | Precipitated Silica |
| Appearance | White free-flowing powder |
| Oil Absorption | 200–240 mL/100g |
| Particle Size D50 | 10–15 μm |
| pH Value | 6.0–8.0 |
| Loss on Drying | ≤7.0% |
| SiO₂ Content | ≥98% |
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