Chemical Composition ZrO2 68% SiO231% other 1%Physical DataDensity: 3.8 kg/L: Bulk density: 2.3 kg/L Compressive strength: 710N (Φ2.0mm) Hardness mohs: 7 Available siza: Φ0.2-2.5mm FeaturesProduced by fusion process High crushing strength Higher density High sphericity and no air pockets Smooth surface Narrow sieving ApplicationHUPC Zirconia Silicate Grinding Beads is made by electric-fusion process. Compared to sinter beads and the similar others, It has more even internal crystallite structure. The middle density and hardness features are suitable for grinding slurry in viscosity from low to middle. It is widely used in grinding of coatings, inks, dyestuffs, kaolin, fillings etc.