Highly dispersible fumed silica with optimized surface treatment for enhanced polymer compatibility.
Provides excellent reinforcement and viscosity control in liquid silicone rubber (LSR) formulations.
Delivers superior mechanical strength, tear resistance, and dimensional stability after curing.
Low abrasivity minimizes wear on processing equipment during high-shear mixing.
Consistent batch-to-batch performance ensured by Tosoh’s stringent quality control and GMP-compliant manufacturing.
Reinforcement of platinum-cured liquid silicone rubber (LSR) for medical devices.
High-clarity optical LSR used in LED encapsulation and light-diffusing components.
Food-grade and pharmaceutical-grade silicone elastomers requiring FDA-compliant fillers.
Precision-molded automotive gaskets and seals demanding low compression set and thermal resilience.
| Chemical Type | Fumed silica, surface-treated with dimethyldichlorosilane |
| Product Form | Free-flowing white powder |
| Appearance | White, odorless, amorphous powder |
| BET Surface Area | ~70 m²/g (as per ASTM D3037) |
| Density (Loose) | ~40–60 g/L |
| pH (4% aqueous slurry) | 3.5–5.0 |
| Moisture Content | ≤1.5 wt% (at 105°C, 2 hrs) |
| Primary Applications | Reinforcing filler for addition-cure LSR systems |
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China