Silica fume, also known as micro silica,it is a very fine pozzolanic material, composed of amorphous silica produced by electric arc furnaces as a byproduct of the production of elemental silicon or ferro silicon alloys. Silica fume can be used in a variety cementitious products such as concrete,grouts,and mortars as well as elastomer,polymer,refractory,ceramic and rubber applications.We supply this product on a monthly basis 300-600 MT / Month