GP14055 GP-PRO Glass Polishing Compound, Professional Glass Polishing Solution, Glass Polish 8.4oz 8.4 oz Pre-mixed Professional Grade Glass Polishing Compound, unique Glass Polishing Solution / particle size 2.3 micron Used to lessen and polish light scratches, lime scale oxidation from any type of glass surface Compound has excellent suspension qualities and will not harden, go off or separate like other cerium oxide compounds. A superior quality compound means you only need to use small quantities at a time to achieve outstanding results Use with powered hand devices for light scratch and surface repair, or as the final polishing step in multi-stage glass repair system, can also be used with a hand pad for light surface clean-up,