XRF (X-ray fluorescence) is a non-destructive technique that uses X-rays to measure the thickness of coatings on substrates. It works by analyzing the fluorescence emitted by the elements in the coating layer when exposed to X-rays.

XRF can measure a wide range of coatings including zinc, chrome, nickel, gold, and other metallic coatings, as well as some non-metallic coatings. The method is highly effective for thin and complex coatings.

XRF coating thickness measurements are highly accurate, typically within a few microns. The accuracy depends on the material being measured and the type of coating.

XRF is a fast, non-destructive, and precise method of measuring coating thickness. Unlike traditional mechanical methods, it does not damage the coating or the substrate, making it ideal for high-value parts and large-scale quality control.