Tokuyama REOLOSIL QS-20 is imported hydrophilic fumed silica from Japan with high purity and easy dispersion. It excels in rheology control, reinforcement, thickening and anti-settling, widely used in coatings, adhesives, silicone rubber and powder additives.
Precise thixotropic control – stabilizes liquid rheology, prevents sagging and settling
High-efficiency reinforcement – greatly improves strength, tensile and wear resistance
Ultra-high purity – SiO₂>99.9%, low impurities ensure stable product quality
Fast dispersion – fluffy powder, easy to add and process without agglomeration
Multi-functional – integrates thickening, anti-caking, carrier and flow aid
Coatings & inks – water-based/UV coatings, leather finishing, thickening & anti-sagging
Adhesives & sealants – thickening, reinforcement, anti-settling
Silicone rubber – reinforcement for HCR/RTV-2K silicone
Powder systems – anti-caking, flow improvement
Cosmetics & plastics – texture adjustment & suspension stability
| Product Type | Hydrophilic Fumed Silica |
| Appearance | Fluffy white powder |
| SiO₂ Content (dry basis) | >99.9% |
| BET Surface Area | 200–240 m²/g |
| pH Value (4% suspension) | 4.2 |
| Moisture Content | <1.5% |
| Bulk Density | Approx. 50 g/L |
| 44μm Sieve Residue | <0.01% |
| Chlorine Content | <50 ppm |
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