ABN Clay Bar Wipe 6&rdquo; Medium Grade DA Polisher Pad for Cars Clay bar pad works extremely fast to remove surface contaminants such as brake dust, light rust, bugs, tree sap, pollen, and the effects of acid rain while eliminating swirl marks. For use on a DA polisher. Significantly reduces the amount of labor need to polish and clean automotive finishes. Hook and loop backing allows for simple and easy install and removal from your DA. Will last 4-5 times longer than the traditional clay bar. brake dust light rust bugs tree sap pollen the effects of acid rain