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Surface-modified with dimethyldichlorosilane for enhanced hydrophobicity and improved dispersibility in non-polar media.
Optimized specific surface area (~170 m²/g) balancing reinforcement, viscosity control, and processing efficiency.
Low residual chloride content, supporting compatibility in sensitive electronic and high-purity polymer applications.
Consistent particle morphology and batch-to-batch reproducibility ensured by Evonik’s proprietary flame hydrolysis process.
Free-flowing powder with low dust generation, facilitating safe handling and automated dosing in industrial operations.
High-performance silicone rubber compounds requiring tear strength, elongation, and compression set resistance.
UV-curable coatings and inks where rheology control and pigment stabilization are critical.
Adhesives and sealants demanding thixotropic behavior and anti-sag performance in vertical applications.
Engineering plastics (e.g., polyolefins, polyesters) for mechanical reinforcement without compromising clarity or processability.
Electronic encapsulation materials requiring moisture resistance, thermal stability, and dielectric integrity.
| Chemical Type | Hydrophobic fumed silica, surface-treated with dimethyldichlorosilane |
| Product Form | Free-flowing white powder |
| Appearance | White, amorphous, odorless powder |
| Specific Surface Area (BET) | 165–175 m²/g |
| SiO₂ Content | ≥99.8 wt.% |
| Residual Chloride | <100 ppm |
| Loose Bulk Density | 30–60 g/L |
| pH (4% aqueous suspension) | 3.7–4.5 |
Contact With Us:
E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
