Tokuyama REOLOSIL QS-09 is a hydrophilic fumed silica imported from Japan. It features ultra-low specific surface area and high fluidity, with precise rheology control and efficient reinforcement, suitable for coatings, polishing, silicone rubber and other fields.
Ultra-low specific surface area – uniform particle size, suitable for low-viscosity formulations without affecting fluidity
Efficient rheology control – precisely adjust liquid thixotropy, prevent sagging and sedimentation, improve construction convenience
Excellent reinforcement – enhance mechanical strength of silicone rubber and sealants, improve durability and adhesion
Easy dispersion and processing – fluffy white powder, no agglomeration after addition, reduce processing difficulty
Multi-scenario adaptation – anti-caking and flow aid functions, suitable for polishing and other special fields
Coating systems – water-based/UV coatings, leather finishing, thickening and anti-sagging, improve stability and transparency
Polishing and grinding – used as abrasive particles for polishes and abrasives, enhance grinding effect and surface finish
Silicone rubber products – reinforcement for HCR-RTV-2K silicone rubber, improve toughness and service life
Sealants/adhesives – thickening and thixotropy, prevent filler sedimentation, enhance bonding strength
Powder products – anti-caking and flow aid, improve storage and processing performance
| Appearance | Fluffy white powder |
| SiO₂ Content (dry basis) | >99.9% |
| BET Surface Area | 90–120 m²/g |
| Primary Particle Size | Approximately 18 nm |
| pH Value (4% suspension) | 4.0–4.5 |
| Moisture Content | <1.5% |
| Bulk Density | Approx. 50 g/L |
| 44μm Sieve Residue | <0.01% |
| Chlorine Content | <50 ppm |
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