Quote Originally Posted by RestoRod View Post
I haven't used a clay bar, but I am wondering; if it removes the contaminants from the paint and absorbs them, does it eventually become "filled" with contaminants to the point where it starts scratching the paint surface? How do you know when it is time to replace the bar or is there a method of cleaning it to extend it's life.
well it would. that is why i look at the clay after working the clay on each panel then i knead the clay bar so i try to keep the big stuff from getting under the bar and making more work