For machine removal of serious paint defects. Mirror Glaze Heavy-Cut Cleaner removes deep swirl marks, scratches and severe oxidation, as well as etching from alkaline or acid rain. With proper application techniques plus Diminishing Abrasive Actionâ„¢ that provides protective lubrication, you'll restore a smooth surface-also suitable for painting-without scouring your finish. For use with a rotary buffer only. Made for professionals.