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Fasting drying
It can be used to speed up the drying rate and shorten making period of the shell in silica sol coating.
Main technical standards:
| Designation | FSâ… | FS â…¡ | FS â…¢ |
| Appearance | Slight milky transparent | ||
| Solid (wt)% | 30.0-31.5 | 32.0-34.0 | 32.0-34.0 |
| density（20℃, g/cm3） | 1.20-1.22 | 1.18-1.20 | 1.18-1.20 |
| Na2O（wt）% | ≤0.2 | ≤0.5 | ≤0.2 |
| PH（20℃） | 8.0-9.5 | 9.0-10.5 | 8.0-9.5 |
| viscosity（20℃, C.P） | ≤15 | ≤15 | ≤20 |
| Particle size（nm） | 8-15 | 8-15 | 8-15 |
| Strength for high temp | Similar to common | ||
| Strength for normal temp | Similar to common | Significantly higher than common | |
| Remain strength | Similar to common | Significantly lower than common | |
| Drying time between the layer |
Approximately 50% of common | Approximately 1/3 of common | |
| Stability | 1 year | 6 months | |
Remarks:
1. The using way is same with common colloidal silica.
2. The life of slurry, the capability of coating and the high-temp strength are similar with common colloidal silica.
3. The shell should be uniform by wind in drying process.
4. Please park 24 hours before dewaxing.
5. It can replace ethyl orthosilicate, and its high-temp strength is higher.
6. It can replace the mixer of colloidal silica and latex.
