HIFULL HB-152 is a high-quality hydrophobic fumed silica, modified with DDS from HL-200 hydrophilic silica. It has high transparency, strong hydrophobicity, good dispersibility, efficient thixotropy, excellent reinforcement and flow aid, suitable for electronic potting, silicone rubber and coatings.
DDS targeted modification – precisely modified with dimethyldichlorosilane, stable hydrophobicity, water contact angle over 140°, moisture-proof and hydrolysis-resistant
High transparency & low interference – excellent transparency, no obvious yellowing, no impact on product appearance and optical performance
Efficient thixotropic control – shear thinning and static thickening, anti-sagging and anti-sedimentation, optimize construction and molding effect
Strong reinforcement – significantly improve tensile strength and tear resistance of silicone rubber, extend product service life
Easy dispersion & processability – fluffy powder without agglomeration, fast wetting and dispersion, suitable for various organic systems and production processes
Electronic potting glue – suitable for RTV silicone rubber potting, providing insulation, reinforcement and rheological stability to ensure electronic device safety
RTV silicone rubber – thickening, thixotropy and anti-sedimentation, improve mechanical properties and long-term stability
Paints/inks – anti-sagging and anti-pigment sedimentation, enhance film flatness, scratch resistance and weatherability
Adhesives/sealants – optimize rheological properties and bonding strength, enhance long-term waterproof sealing reliability
Powder coatings – flow aid and anti-caking, reduce coating white spots, improve coating processability and finished product appearance
| Brand | HIFULL |
| Product Type | Hydrophobic Fumed Silica / Nano Silicon Dioxide |
| Appearance | White fluffy powder |
| Modifier | DDS (Dimethyldichlorosilane) |
| SiO₂ Content | ≥99.8% |
| BET Surface Area | 170 ± 30 m²/g |
| pH Value | ≥3.9 |
| Loss on Drying | ≤0.5% |
| Tap Density | 40–60 g/L |
| Primary Particle Size | 10–14 nm |
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E-mail: wangxingqiang@ericwchem.com
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