Silica Fume is produce from Desilication in Zircon Sand melting, is widely used in monolithic refractories, Castable materials by adding silica Fume can change the structure of  monolithic refractories, improve its rheological property, enhance intensity, and increase its service life.

Product features:

  hight reactivity

 low content of alkali oxides

 Small average particle size

 low Ph value

Spec: SiO2  92%min  ZrO2  2-4% 

  Size:D50  4-10um

  LOI   0.2max

 PH    2-5

 Whiteness   80min.

Packing:25kg bag or 500kg big bag/pallet.