HIFULL HB-132 is a high-quality hydrophobic fumed silica deeply modified with hexamethyldisilazane. It has low thickening effect, high transparency, excellent reinforcement, thixotropic anti-sedimentation and flow aid, with good dispersibility, suitable for silicone rubber and powder coatings.
Deep hydrophobic modification – deeply treated with hexamethyldisilazane, moisture-proof and hydrolysis-resistant, improve long-term storage stability of formulas
Low thickening & high transparency – mild and controllable thickening effect, no impact on product transparency, suitable for high transparency scenarios
Efficient reinforcement – excellent reinforcement performance in silicone rubber filling, significantly enhance product strength, toughness and service life
Excellent thixotropy & anti-sedimentation – effectively prevent particle sedimentation in the system, maintain uniform stability, optimize construction and use performance
Easy dispersion & processing – fluffy white powder, no agglomeration, fast wetting and dispersion, suitable for various production processes, reducing processing costs
Silicone rubber products – efficient reinforcement, improve mechanical properties and toughness of products, extend service life
Powder coatings – improve free fluidity of powder, prevent caking, optimize coating processing and construction performance
Paints & coatings – thixotropic anti-sedimentation and low thickening, enhance film transparency and construction leveling
Sealants & adhesives – improve thixotropy and bonding strength, enhance waterproof sealing and long-term reliability
Printing inks – stabilize system rheology, prevent pigment sedimentation, improve printing clarity and color stability
| Appearance | Fluffy white powder |
| SiO₂ Content | ≥99.8% |
| BET Surface Area | 380±30 m²/g |
| pH Value (4% suspension) | 3.7–4.5 |
| Loss on Drying | ≤2.5% |
| Loss on Ignition | ≤2.5% |
| Tap Density | 40–60 g/dm³ |
| Screen Residue (45μm) | ≤250 mg/kg |
| Iron Content | ≤30 ppm |
| Aluminum Content | ≤50 ppm |
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E-mail: wangxingqiang@ericwchem.com
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