You can buy refractory micro silica from Bemsun, whom it is provide certificated MSDS undensified refractory micro silica in China with the third party guaranteed.
1. Introduction of Refractory Micro Silica
is a byproduct of producing silicon metal or ferrosilicon alloys. Mine electric furnace generates mass very reactive SiO2 and Si gas. The gas was oxidation and condensation precipitation with air rapidly.
2. Refractory Micro Silica main features:
* High early strength
* Greater impermeability
* High ultimate compressive strengths
* Substantially greater resistance to corrosion
3. Specification - Refractory Micro silica
SiO2: 97%
Fe2O3: 0.2%
Al2O3: 0.1%
LOI: 3%max
Mositure: 1.5%
Specific surface: 18kg/m2
Bulk Densify: 200-350kg/m3
4. Undensified Refractory Micro Silica Application
Micro silica admixure is used in refractory material
A. Traditional refractories have numerous pores. Microsilica can fill the pores, improve the bulk density and reduce porosity, and then strength is enhanced obviously.
B. Undensified Micro silica have strong activity, it can be colloidal particles with water. Adding appropriate amount of dispersant, it can help improving mobility and pouring performance.
C. Undensified Microsilica can react with water to —Si-OH, it is with high hydrophilic active. It can enhance the cohesion of refractories and improve the high temperature performance. Besides, it can extend the refractories life.
D. Undensified Micro silica instead of purity aluminum oxidation mud for refractories and then save much cost.
