Description
Product information
GS-20 is a hydrophobic fumed silica treated with DDS (dimethyl dichlorosilane) after hydrophilic fumed silica treatment. Its specific surface area is around 170m²/g.
Product Property
- Control rheology and thixotropy
- Reinforcement of silicone elastomers
- Improve free flow
- Anti-flow and anti-subsidence
- thickener
physical data
| Physical and chemical pro- perties | unit | numeric value |
| specific area | m²/g | 170±20 |
| PH Value (4% suspension) | – | 3.7-4.5 |
| Dry weight loss (105°C, 2h) | wt.% | ≤0.7 |
| Reduction of burning (1000° C, 2h) | wt.% | ≤2.5 |
| SiO2 content | wt.% | ≥99.8 |
| stacking density | g/l | 50 |
Applications
- Room temperature vulcanized silicone rubber(RTV)
- Adhesives and sealants
- Electronic potting compound
- Industrial coatings
- cosmetics
- Powder coating
Packaging
- pallet with paper bag:
10 kg /bag
