1.85%-97% microsilica 2.Stable quality 3.Microsilica/Micro Silica 4.good activity indicators 5.can densified to 650 kg/m3 Microsilica , Micro Silica , Silicafume , Dioxide , Silicon Dioxide 85%-97% Micro silica ,also called silica fume or micro silica, is a byproduct of production silicon metal or ferrosilicon alloys. Silicon metal and alloys are produced in electric furnaces.The raw materials ...