... 50kg bag,1 MT bag 2.70#,80#,85#,90#,95#,98#,99#,99.5# 3.Grain size:0 ... silica crystallization,it is grey or hoar powder,its refractoriness is above 1600 celsius degreeUsage: ... ,anticorrosive,impact resistance and wear- resisting property.2.Water retention,prevent segregation reduce pumping resistance of ... and finish material.4.silicate brick materials.5.Producing Sodium silicate.6.Reinforce materials for ...