FS-III schnelle Trocknung kolloidales Siliciumdioxid

FS-IIIfast-drying colloidal silica FS-IIItype silicasol enhanced drying of the company is building following the FS- (FS- 30). FS-IIItype has a faster drying rate, but also Shell excellent performance, therefore more suitable for the use of precision casting industry. The product has been declared the national invention patent.however,if you are overseas,we strongly recommendFS-30 fast drying tpye beacause the FS-III only can be storaged for 3 months theoretically. Main technical standards: Designation StandardAppearanceSlight milky transparent to translucentSiO2 (wt%)29±0.5%Na2O (wt%)≤0.5%PH (20°C)9.5-10.5Density (20°C,g/cm3)1.19-1.21Viscosity (20°C,mPaS)≤12Particle size (nm)8-20Stability≥3 months Remark: 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.It only need about 1/3 time of common colloidal silica to dry. 4.The wind in shell making plant is most important. 5.Please park 24 hours before dewaxing. 6.It can replace ethyl orthosilicate, and its high-temp strength is higher. 7.It can replace the mixer of colloidal silica and latex. 8.It doesnt need to change using way. 9.The life of slurry, the capability of coating and the high-temp strength are similar with common colloidal silica. 10.Because its wet strength is higher, its ability to resist dissolve is harder. 11.The wind in shell making plant is most important. About 1/2 time to dry for generic casts. 12.Its rudimental strength is lower, so its easier to clean. 13.Need 24 hours to park before dewaxing. 14.It can replace ethyl orthosilicate, and its high-temp strength is higher. 15.It can replace the mixer of colloidal silica and latex. But it cant be used with latex because of its special capability. 16.It doesnt need to change using way. 17.The life of slurry, the capability of coating and the high-temp strength are similar with common colloidal silica. 18.Because its wet strength is higher, its ability to resist dissolve is harder. 19.The wind in shell making plant is most important. One or two hours are enough to dry for generic casts, when the wind speed is 8m/s in workshop. 20.Its rudimental strength is lower, so its easier to clean. 21.Need 24 hours to park before dewaxing. 22.It can replace ethyl orthosilicate, and its high-temp strength is higher. 23.It can replace the mixer of colloidal silica and latex. But it cant be used with latex because of its special capability. Packing & Storage Colloidal silica is packed in 25kg, 250kg or 1000kgplastic drums. Store the colloidal silica at a temperature between 0 and 50, avoid exposure to the air, and insulate it from the sun. Wash the empty drums as quickly as possible to avoid SiO2 crystalline deposits. If you want to remove the deposition from empty drums, use a 10-percent NaOH solution at 50 60.