Hydrophilic Fumed Silica Powder QS 25 for Silicone Rubber and Adhesives
Product Description
REOLOSILQS-25 is a very fine amorphous silicon dioxide made by combustion of high purity silicon tetrachloride with oxygen and hydrogen.
Product Data
| item | value |
| Appearance | White Powder |
| Application | Silicone Rubber |
| Specific Surface Area (BET) | 230-290 m2/g |
| Bulk Density | 50 g/L (approximately) |
| pH (4% suspension) | 4.2 |
| SiO2 purity (Dry basis) | > 99.9 % |
| Cl | < 50 ppm |
| Al | < 20 ppm |
| Fe | < 20 ppm |
| 44μm Residue | < 0.01 % |
| Moisture Content (Dry up, %) | < 2.0 % |
Application
Its unique properties offer advantages in many applications; silicone rubber, sealants, organic elastomers, UPR, adhesives, paint,ink and free flow. It is used as reinforcing, thickening, anti-settling, thixotropic and free flow agent.
