More on Clay Solutions
The benefit of clay bars are that they will remove all the contaminants off of the painted surface, many of which are nearly invisible to the naked eye! Clay Bars work optimally with a type of lubricant that will allow the bar to glide across the painted surface.
Clay Mitts & Applicators
These products are designed to do everything that clay bars can do, but they have some sort of handling mechanism that makes them easier to control when crossing a vehicular surface. Another plus with clay mitts and applicators is that you don't have to spend the extra money on a lubricant, you can just use soapy water.