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Hydrophilic Fumed Silica Felcosil-EC 200 In Adhesives and Sealants
Physical Properties
Felcosil-EC 200 is hydrophilic fumed silica with a specific surface area of 200m 2/g. It is a kind of high purity white colloidal powder.
Properties
- Reinforcing filler in elastomers
- Rheology and thixotropy control of liquid system, binder, polymers.etc.
- Used as anti-setting, thickening, anti-sagging agent
- Improvement of free flow and anti-caking characteristics of powders
- High tansparency
Specifications
| Properties | Target Values (Spec Limits) |
| Appearance | White Powder |
| BET specific surface area m2/g | 180-220 |
| Heating Loss at 105 °C 2h wt.% Max | 2.0 |
|
Igniting Loss wt.% (2h at 1000 °C, based on materials dried for 2h at 105 °C) Max |
2.0 |
| pH Value in 4% dispersion | 3.7-4.5 |
| SiO2 (based on ignited material) % Min | 99.8 |
| Tamped density (based on material dried for 2h at 105 °C g/L | 40-60 |
| Carbon conten (based on material dried for 2h at 105 °C wt.% Max | 0.15 |
Hydrophilic Fumed Silica Application
• HTV and RTV silicone rubber
• Adhesives and sealants
• Paints, coatings and pigments
• Printing inks
• Cable compounds
• Unsaturated polyester resins, laminated resins and Gel coats
