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 Action 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. Meguiars