... , transparent, no bubbles and impurity. widely used in blasting, polishing, grinding etc. Glass beads with the quality of clean, transparent, no bubbles and ... chemically with other materials so that it widely used in blasting, polishing, grinding etc. Chemical AnalysisPhysical PropertiesSiO2≥65.0%Bulk Density1 ... Size:0.2-10mmAll sizes can be supplied as required. Blasting Glass Beads