For defect repair and scratch removal our 3M™ Glass Polishing Compound is a high quality, one-step solution for assorted glass surfaces and parts. This bottled liquid compound uses a cerium oxide mineral blend, which assures a great cut and the highest level of polish possible. - This high-efficiency compound requires only 2-4 drops for every square foot of glass surface area and requires little or no cleanup. The 3M Glass Polishing Compound gives you a professional looking finish without the need for professional level expertise.