best price China supplier buy silica fume

Silica fume is a byproduct of producing silicon metal or ferrosilicon alloys.It consists primarily of amorphous silicon dioxide (SiO2),its average granule diameter is 0.15~0.20 µm,specific surface area is 15000~20000 m2/kg.

Usages 

(1)Silica fune can be blended into cement and concrete to improve the quality of concrete.      

(2)It can be used as addition agent in the fireproofing material. Silicon fume has high fluidity, high strength.

(3)It is the adhesive of metallurgical pellet.