RE: Clay Bars
From the Zaino Bros web site:
"Clay bar was designed to remove airborne contaminants, paint overspray, water spots, rail dust, industrial fallout, diesel fuel & catalytic converter residue and any other bonded surface contaminants from paint. All cars even brand new factory paint has airborne contaminants... Here's the deal. The non-abrasive Z-18™ ClayBar will remove any surface contaminants from the paint finish and not hurt the clear-coat. The ClayBar will get that paint finish smooth as glass. Now remember waterspots, bird droppings and bug guts if left on the paint finish for any length of time, will etch into the paint finish. The ClayBar will also remove any store bought waxes...."