Colloidal silica is a dispersion of nano-sized silica particles in water or in a solvent. It is ordless and non-ont>
Colloidal silica has good cohesiveness, good high-temperature strength, low contractility and etc. Advantages, therefore it praise highly in most of casting enterprise, moreover it become China Foundry Association's recommended products.
PRECISION CASTING
HS series colloidal silica for precision casting according to different high-temperature strength divided into the surface-layer HS-830 colloidal silica，and the back-layer HS-1430 colloidal silica.
CERAMICS
HS series colloidal silica usually used in ceramic polishing with particle size, and because of its small particle size, it can also used in filling the pore of ceramics.
OTHER SERIES
Meanwhile, for customers need, we research and development two types silica sol, TGS-25 surface enhanced colloidal silica, it can enhance surface degree of finish and strength of high temperature, improve the yield of casting, reduce the time and cost of cleaning sand.
TGS-30 polymer modifiedcolloidal silica, it can greatly improvement the shell efficiency and the shell mould quality stability, which is suitable for automatic shell production shell drying speed can be greatly increased, the construction period can be shortened, and the cost can be saved.
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