Abrasive Sandblasting Media Glass Beads

Abrasive Glass Beads/blasting glass beads /abrasive sandblasting media Glass beads abrasive with their hardness and spherical form can remove impurities and metal oxides without damaging the treated surface. Glass does not react chemically with other material so that the micro-beads do not create any corrosion on the treated surfaces with no deposits of foreign substances. Chemical Name & Synonyms Soda-lime Silicate-Glass Chemical Family Silicate glass without free silica Formula SiO2 71-73% Na2O 13-15% MgO 3-5% CaO 8-10% Al2O3 0.5-2% K2O 0.2-0.6% Physical Properties Boiling Point N/A Vapour Pressure N/A Percent Volatile by Volume Nil Vapour Density N/A Evaporation Rate N/A Odour Nil Refractive Index 1.52 Oil Absorption (ASTM) 17 Solubility in Water Not Soluble Mohs 6 Absolute Specific Gravity(H2O=1)2.46 Knoop Load 100:515kg/mm2 Absolute Specific Gravity 1.6kg/dm3 Hardness DPH Load 50kg:540kg/mm2 Specific Heat Average 0.18kcal/mhoC Dielectric Strength 4,500kv/cm Dielectric Constant 7.2(1MC at 20oC) Expansion Coefficient 8.5*10-6 Grades/Sizes: Microns Mesh Inches Sphere Count 590-840 20-36 .0234-.0331 65% 420-590 30-40 .0165-.0234 70% 250-420 40-60 .0098-.0165 70% 177-297 50-80 .0070-.0117 80% 149-250 60-100 .0059-.0098 80% 105-210 70-140 .0041-.0083 80% 74-149 100-200 .0029-.0059 90% 53-105 140-270 .0021-.0041 90% 44-88 170-325 .0017-.0035 95% 30-62 270-500 .0012-.0024 95%