How to purchase glass beads? 2019-04-12 Glass beads are an abrasive with unique characteristics that are widely used in cleaning or metal surface strengthening treatments, and are mainly used in sandblasting equipment. The glass beads are crushed and sorted from high-quality broken glass. During manufacturing, the cullet must be melted into a spherical shape and then annealed to eliminate internal stress and prevent damage. This kind of transparent and clear spherical structure product will not have particles embedded in the workpiece, contaminate the workpiece or cause other damages. Using different size abrasives and different operating parameters, glass beads will achieve different gloss levels on the surface of the workpiece. The use of shot peened glass beads to selectively cover the surface of the workpiece with controlled sandblasting can produce a special decorative effect.