Coating thickness gauges provide fast, non-destructive measurement of paint and coating thickness on metal surfaces. Ideal for automotive inspection, paintwork assessment, manufacturing and quality control where coating consistency needs to be checked accurately.
Coating Thickness Gauges
Coating Thickness Gauges
About This Category
Paint and protective coatings often need to meet specific thickness requirements to provide the expected finish, durability and protection. Coating thickness gauges allow these layers to be measured quickly without damaging the coating, making them useful for inspection, production and quality control.
Different measurement principles are used depending on the material beneath the coating. Magnetic induction is commonly used for non-magnetic coatings on ferrous substrates such as steel and iron, while eddy current measurement can be used for non-conductive coatings on non-ferrous metals such as aluminium. Instruments capable of working with both substrate types provide greater flexibility when testing different components and surfaces.
A paint thickness gauge can be particularly useful in automotive inspection, where variations in paint thickness may help identify areas that have been repainted or repaired. Coating measurement is also widely used in manufacturing, metal fabrication and surface finishing to verify coating application and maintain consistent production standards.
Measurement range, accuracy, resolution and substrate compatibility are important considerations when selecting a coating thickness gauge. Depending on the model, functions such as automatic substrate recognition, calibration, MIN/MAX readings, averaging and data storage can make repeated inspections and quality checks more efficient.
For other instruments used in inspection, maintenance and environmental measurement applications, browse our environmental testers range.

