Lapping film/Polishing Film is coated with precisely graded minerals (such as diamond, aluminum oxide, silicon carbide, silicon oxide, cerium oxide and so on) on the high strength polyester backing to provide a uniform, consistent finish. With or without PSA (Pressure Sensitive Adhesive) backing, and available in sheets, discs and rolls for meeting the use on any type of polishing equipment. These films are widely used in the polishing of fiber optic connectors, roller, hard disk and metal parts etc.Aluminium oxide lapping film, Silicon Carbide Lapping Film Disc, Cerium Oxide Lapping Film Disc and Diamond Lapping Film Disc is a machini ng process, in which two surfaces are rubbed together with anabrasive between them, by hand movement or using a machine,We can supply the Diamond, Silicon Carbide and Alumina Lapping Films and others kind of abrasive .This film is one of the most aggressive sharpening mediums we’ve tested. Used in the electronics industry for polishing fiber-optic components and computer hard drive heads, this durable, fast-cutting film is truly remarkable for sharpening edge tools.