you will find material thickness meters for determining the thickness of paint and surface coatings. The principles behind measuring paint and coating thickness in these material thickness meters is the magnetic induction or the interference to current. These material thickness meters can be used for all types of metal surfaces (steel, iron, non-ferrous metals). For these reasons, the thickness meter can be used where ever there is a galvanizing process. These devices are particularly practical for quality control in anodizing, galvanizing and zinc coating. They are perfect for measuring body paint thickness on automobiles.