When you clay your vehicle, you remove the contaminants, making the coat easier to wax. ... The detail clay also removes tar, sap, bug remains, wax, and sealants from the coat of the car. With these substances removed, waxes and sealants will adhere to the surface better.

Do I need to remove wax before clay Bar?

The function of a clay bar is to remove bonded contaminates from the surface. This is a step, if needed, that you will always want to use before you wax. The reason that this step is always done before polishing and waxing is due to the fact that it will not only remove those contaminates but polishes and waxes too.

What will clay bar remove?

While a clay bar treatment can remove contaminants like bird droppings, tree sap, paint overspray, and brake dust, it cannot remove actual scratches in the paint because it doesn't contain any abrasives, according to the Chemical Guys.