HIFULL HB-612 is a high-quality hydrophobic fumed silica prepared by organosilane surface modification. It has high purity, strong thixotropic thickening, anti-sedimentation and excellent reinforcement, with good dispersibility and hydrolysis resistance, designed for polar systems.
High specific surface area & activity – stable and controllable surface area, significant thickening and thixotropic effect, excellent anti-sagging performance
Strong reinforcement – as the core reinforcing filler for elastomers, greatly improve product tensile strength, tear strength and wear resistance
Long-term anti-sedimentation – stabilize the suspension state of the system, effectively prevent pigment sedimentation and extend shelf life
High transparency & purity – high silica content, extremely low impurities, no impact on product transparency and electrical properties
Easy dispersion & processing – fluffy powder form, fast wetting and dispersion, suitable for various production processes and reducing processing costs
Silicone rubber/elastomers – efficiently reinforce, improve mechanical properties and structural stability, suitable for high-end rubber scenarios
Industrial coatings/paints – thicken, thixotropic, anti-sagging and anti-sedimentation, enhance film hardness, scratch resistance and workability
Sealants/adhesives – improve thixotropy and bonding strength, enhance waterproof sealing performance and long-term reliability
Printing inks – stabilize system rheology, improve pigment dispersion, printing clarity and color uniformity
Unsaturated polyester resin – improve resin transparency, enhance product mechanical properties, suitable for high-end resin products
| 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 |
Contact With Us:
E-mail: wangxingqiang@ericwchem.com
Have a Questions? Call Us:
Add:
Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China