Diamond Porcelain Polishers New ceramic systems and their processing techniques require new polishing systems. Specifically developed for gently polishing porcelain and all-ceramic restorations (zirconia). Diamond grit with a highly condensed, longmesh synthetic bonder, produce an outstanding surface texture. Finish, smooth and highlustre polish without using polishing paste or needing an extra glaze firing. These StarGloss polishers are guaranteed to polish all-ceramics ZrO2 gently and successfully. Step 3 = Grey: Superfine grit For high-shine polishing without additional final glaze.