The Mirka MicroStar Film Backed Abrasive Disc is designed for mattening and paint rectification of top and clear coat applications. Microstar has a special stearate layer and a smooth film backing. Mirka MicroStar abrasive discs have a high quality finish that lasts longer as it doesn’t clog as easily as traditional products. Mirka Microstar produces a fine scratch pattern that is easy to polish out. For a perfect result, it is recommended to use Microstar with a 5 mm interface pad. Microstar sanding discs are developed for dry sanding only.