Sipernat 2200 is an Evonik spherical granular precipitated silica from Germany with high absorption, low dust, excellent flow and strong reinforcement. Specially designed for HTV silicone rubber, liquid curing and powder carrier, offering high transparency, low yellowing and good mechanical properties.
Spherical particles:Excellent flow, converts liquid into dust-free free-flowing powder
Low fines content:Eco-friendly processing, low dust & good dispersion
High absorption & loading:Stable liquid loading, high carrier efficiency
Silicone rubber reinforcement:High transparency, low yellowing, no whitening
Stable properties:Precisely controlled BET, particle size & purity
HTV silicone rubber:Reinforcement, transparency, low yellowing
Silicone products:Roller, packaging, seals, high strength & wear resistance
Liquid systems:Coatings, inks, adhesives rheology & curing
Powder carrier:Liquid-to-powder, anti-caking, flow aid
Industrial rubber:General rubber reinforcement, transparent good
| Brand | Sipernat (Evonik Germany) |
| Product Type | Hydrophilic spherical precipitated silica |
| Appearance | White spherical granular powder |
| BET Surface Area | 190 m²/g |
| DOA Absorption | 225 ml/100g |
| Median Particle D50 | 260–380 μm |
| pH Value | 5.0–7.0 |
| Loss on Drying | ≤7.0 wt% |
| SiO₂ Content | ≥98% |
| CAS No. | 112926-00-8 |
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