Meguiars smooth surface clay for paint surfaces meguiars g1001 this smooth surface replacement clay bar from meguiars has been designed to deal with contaminants such as tree sap overspray and industrial fallout which settle on the paint making it appear rough and dull the bar gently remove these impurities to produce a paint surface as smooth as glass polish and wax may then be applied in half the time with significantly better results meguiars g1001 smooth surface replacement clay bar