Grinding Glass Beads strong hardness new glasses for material Round ratio above 85% ISO, CE Grinding Glass Beads III. HardnessHV, Loading 100g, residence time: ... test : 0.1%V. ApplicationThey are mainly used for the disperser, grinding media of industries, such as coloring, paint, ink, ... filling-type bead could be used to improve glass fibre reinforced plastic, rubber, and so on. Grinding Glass Beads