MS10 Description This grade of micronized silica flour is manufactured from super fine silica sand having a SiO 2 content of up to 99%. Recommended Applications Filler material, Heavy duty paints, coating, Spraying paints, silicones, High performance concrete and Chemicals. Typical Properties Bulk Density 0.5g/cm ³ Oil Absorption 28g/100g PH 7 Hardness 7 Moh's Minimum brightness 90 Chemical Composition SiO 2 98.8-99.1% Fe 2 O 3 0.025-0.04% Al 2 O 3 0.50-1.00% TiO 2 0.04-0.09% Particle Distribution