Did you just wash your car and when you ran your hand over it it STILL felt covered in a layer of dirt? That isn't dirt, it's oxidation and you can't wash it away. It's time to clay bar it. In this tutorial you will learn how to use Wolfgang products to clay bar your vehicle and get that smooth polished finish back. Clay bars remove a thin layer of paint so be careful and watch this video to make sure you clay bar your car or truck properly.