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High-purity, surface-treated fumed silica offering excellent dispersion in silicone elastomer systems.
Enhances mechanical reinforcement while maintaining low viscosity during mixing and processing.
Provides outstanding thixotropic control and anti-settling performance in uncured formulations.
Compatible with both high-temperature vulcanizing (HTV) and room-temperature vulcanizing (RTV) silicone polymers.
Low moisture content ensures improved shelf stability and reduced risk of premature crosslinking.
Reinforcing filler for high-performance HTV silicone rubber used in automotive sealing systems.
Rheology modifier in RTV-2 condensation-cure silicone sealants for construction and glazing.
Thixotropy agent in silicone-based thermal interface materials (TIMs) for electronics cooling.
Viscosity stabilizer in liquid silicone rubber (LSR) formulations for medical device molding.
| Chemical Type | Fumed silica (silicon dioxide, SiO₂) |
| Product Form | Free-flowing white powder |
| Appearance | White, amorphous, odorless powder |
| BET Surface Area | Approx. 200 m²/g |
| Loss on Drying (105°C, 2 hrs) | ≤ 2.5 wt% |
| Ignition Loss (1000°C) | ≈ 1.0–2.0 wt% |
| Primary Particle Size | Approx. 7 nm |
| pH (4% aqueous suspension) | 3.5–4.5 |
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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
