HIFULL HB-615 is a high-performance hydrophobic fumed silica modified with HMDS. It features strong hydrophobicity, stable thixotropy, efficient reinforcement and powder flow aid, designed for silicone rubber, coatings, adhesives and powder systems.
HMDS deep hydrophobic modification – uniform surface treatment, strong hydrophobic stability, hydrolysis and moisture resistance
Balanced rheological control – stable thixotropy, anti-sagging and anti-sedimentation, improve construction quality
Efficient elastomer reinforcement – greatly enhance mechanical strength, toughness and aging resistance
High purity & low impurity – low impurity content, suitable for high-end electronic and transparent products
Easy dispersion & processability – fluffy powder, fast wetting, good compatibility with various processes
Silicone rubber (HTV/RTV/LSR) – efficient reinforcement, improve mechanical properties and service life
Paints & inks – anti-sedimentation and anti-sagging, improve film flatness and scratch resistance
Adhesives & sealants – optimize rheology and bonding strength, enhance sealing reliability
Powder coatings & toners – flow aid and anti-caking, improve processability and appearance
Industrial defoamers – enhance defoaming efficiency and long-term stability
| Brand | HIFULL |
| Product Type | Hydrophobic Fumed Silica / Nano Silicon Dioxide |
| Appearance | White fluffy powder |
| Modifier | HMDS (Hexamethyldisilazane) |
| SiO₂ Content | ≥99.8% |
| BET Surface Area | 140 ± 30 m²/g |
| Loss on Drying | ≤0.5% |
| Tap Density | 50–80 g/L |
| Primary Particle Size | 12–16 nm |
| pH Value | 5.0–8.0 |
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E-mail: wangxingqiang@ericwchem.com
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