Everything You Need to Know about a Coating Thickness Gauge

by Robert Johnson Blogs on Latest News A coating thickness gauge, also commonly known as a paint meter, is used to measure the thickness of a dry film. Dry film thickness is an extremely important type of measurement, especially in the coating industry. This is because it has a heavy impact on the entire coating methodology, the final quality, and the overall cost. Dry film thickness measurements are additionally used to determine the longevity and life expectancy of the coating material. Moreover, it is deployed to keep track of the product’s eventual appearance and performance while ensuring that the items adhere to the necessary international standards.

Measuring Dry Film Thickness

Dry film thickness (DFT) is usually measured by using two common techniques: destructive thickness measurement and non-destructive testing. In the destructive testing method, the material is first cut. In the latter method, as the name suggests, there is no damage to the coating or the material’s structure and composition. Some of the non-destructive testing methods include magnetic, magnetic induction, and eddy current thickness measurement techniques.

Non-destructive Testing for Coating Thickness Measurement

The non-destructive coating thickness measurements can be carried out on both magnetic steel surfaces as well as non-magnetic metal surfaces. Some of the materials in the latter category include stainless steel and aluminum. Digital coating thickness gauges are the perfect tools to calculate the coating thickness of metallic samples. Again, electromagnetic induction is mostly implemented to measure non-magnetic coatings on ferrous substances, like steel. Finally, the eddy current technique is used on non-conductive coatings on non-ferrous metals.

Coating Thickness Gauges

Coating thickness gauges are used to measure dry film thickness. Some types of paint inspection gauges are used to determine the dry film thicknesses on non-metallic substrates. Other types of non-destructive coating thickness gauges, such as mechanical and digital coating thickness gauges, are well-suited for dry film testing on a variety of substrates. They even include a gamut of probes and calibration foils as per your requirements.

Mechanical coating thickness gauges are the best bet for industries that have a high-risk working area. In places where temperatures are extremely high and there are high chances of an explosion, it is dangerous to use an electrical instrument. In such cases, analog, mechanical gauges are a good choice. They give quick and accurate results even in surfaces underwater or in cold climates.

Finally, digital coating thickness gauges give highly accurate and reliable thickness measurements and can be used on almost all kinds of materials, both ferrous and non-ferrous substrates.

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Created on May 23rd 2020 01:40. Viewed 311 times.

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