
SiSiB® FS9141 Hydrophobic Fumed Silica is a high-purity white colloidal powder made from hydrophilic fumed silica with a specific surface area of 150 m²/g, treated with HMDS (Hexamethyldisilazane) for enhanced hydrophobic properties.
SiSiB® FS9141 is hydrophobic fumed silica made by hydrophilic fumed silica with specific surface area of 150 m2/g being treated by HMDS (Hexamethyldisilazane). It’s a kind of high purity white colloidal powder.
Rheological control of RTV silicone rubber
Anti-settling, anti-sagging and thixotropy agent
Improve the free flow of powder coatings and anti-caking.
Thixotropic agent & reinforce filler for RTV silicone sealants, the hydrophobic feature enables RTV silicone sealants a long shelf time
CAS No. | 68909-20-6 |
Specific surface area (BET) | 120 - 160 m2/g |
pH-Value in 4 % aqueous dispersion (1:1 mixture of water and ethanol) (1:1 mixture of water and ethanol) | 5.0 – 8.0 |
Loss on drying (2h at 105°C) wt.% | Max. 0.7 |
Loss on ignition (2h at 1000°C) wt.% | Max. 2.0 |
Silica content (based on ignited material) wt.% | Min. 99.8 |
Tamped density (2h at 105°C) g/L | 40 - 60 |
Carbon content (2h at 105°C) wt.% | 0.7-1.3 |
RTV silicone rubber
Adhesives and Sealants
Coatings & Printing Ink
Powder Coatings
SiSiB® FS9141 is supplied in multiple layer 10 kg bags.
20’ft GP container can load 2000kg with 10 pallets; 40’ft HQ container can load 4800kg with 20 pallets.
In the original unopened packaging, SiSiB® FS9141 has a shelf life of 24 months under dry conditions.
All information in the leaflet is based on our present knowledge and experience. We reserve the right to make any changes according to technological progress or further developments. Performance of the product described herein should be verified by testing.
We specifically disclaim any other express or implied warranty of fitness for a particular purpose or merchantability. We disclaim liability for any incidental or consequential damages.
April 2024 | Technical Data Sheet | Edition LR
Please send all technical questions concerning quality and product safety to: support@SiSiB.com.