Undensified Microsilica (Silica Fume)

ACC® Undensified Microsilica is a by-product of the production of ferrosilicon alloys or silicon metal, with SiO2 content ranging from 85% to 96%, bulk density around 300 — 400kg/m3, and light gray color. They are classified as Grade 85U, Grade 92U, Grade 94U and Grade 96U. It’s collected, and packed from ferrosilicon or silicon metal factories directly, the automatic and integrated production process guarantees the consistent quality.