Sipernat 186 is a medium particle size and medium absorption precipitated silica imported from Germany. It is designed for silicone rubber reinforcement and special carriers, improving mechanical strength and stabilizing viscosity of HTV, LSR and RTV-2C with good dispersibility.
Medium particle & absorption:Balanced properties for versatile use
Silicone rubber reinforcement:Greatly improves mechanical strength
Viscosity stabilization:Stable viscosity & longer processing window
Excellent dispersibility:Easy mixing, smooth surface finish
Reliable carrier:Suitable for specialty formulation carrier
HTV silicone rubber:Reinforcement, wear resistance, viscosity control
LSR silicone rubber:Improved mechanical & molding properties
RTV-2C silicone rubber:Strength enhancement & longer pot life
Specialty carrier:Active ingredient carrier in various industries
| Brand | Sipernat (Evonik Germany) |
| Product Type | Hydrophilic precipitated silica |
| Appearance | White powder |
| BET Surface Area | 160–200 m²/g |
| Median Particle D50 | 10–14 μm |
| Oil Absorption | 180–220 ml/100g |
| pH Value | 6.0–8.0 |
| Loss on Drying | ≤7.0 wt% |
| SiO₂ Content | ≥98% |
| CAS No. | 112926-00-8 |
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