Hydrophobic Fumed Silica 612 , Treat 150 with HMDS
Fumed Silica
FM-H-B612
Characteristic
FM-H-B612 is hydrophobic fumed silica which produced by FM-H-L150 after chemical post-treatment with HMDS(Hexamethyldisilazane).
Applications
● RTV silicone rubber
● Adhesives & sealants
● Coatings & Printing Ink
● Powder Coating
Properties
● Rheological control of RTV silicone rubber
● Anti-settling,anti-sagging and thixotropy agent
● Free flow aid and anti-caking aid for powders
● Thixotropy and reinforcement in RTV silicone sealants,the hydrophobic feature gives RTV
silicone sealants a long shelf-life
Product Type and Data
| Test Item | Unit | Standard GB/T 20020-2013 | ||
|
Specific Surface Area (before modification) |
m2/g | FM-H-L150 | 150±15 | |
| pH Value | / | 5.5～7.5 | ||
| Loss on Drying @ 105℃ | % | ≤0.7 | ||
| Loss on Ignition @ 1000℃ | % | ≤2.0 | ||
| Tamped Density | g/l | 40～60 | ||
| SiO2 Content | % | ≥99.8 | ||
| Carbon Content | % | 0.7-1.3 | ||
| Chloride Content | mg/kg | ≤250 | ||
|
Oxide Content
|
Al2O3 | mg/kg | ≤400 | |
| TiO2 | mg/kg | ≤200 | ||
| Fe2O3 | mg/kg | ≤30 | ||
| Appearance | White colloidal powder | |||
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