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1. Measurement Principle: Coating thickness gauges operate based on two primary measurement principles: magnetic induction and eddy current. Magnetic induction gauges are suitable for measuring non-magnetic coatings (e.g., paint) on ferrous substrates (e.g., steel), while eddy current gauges are used for non-conductive coatings on non-ferrous substrates.
2. Types of Substrates: Coating thickness gauges are designed to work on different types of substrates, including steel, aluminum, and other metals commonly used in vehicle manufacturing. Dual-purpose gauges are also available to measure coatings on both ferrous and non-ferrous substrates.
3. Measurement Units: These gauges can display thickness measurements in various units, such as micrometers (µm) or mils (1 mil = 25.4 µm), depending on the user's preference and industry standards.
4. Non-Destructive Testing: One of the key advantages of coating thickness gauges is that they are non-destructive testing instruments. They do not damage the coating or the substrate during measurement, making them ideal for quality control and inspections.
5. Applications: Coating thickness gauges are used in several automotive detailing applications, including:
Quality Control: Manufacturers use them to ensure that coatings are applied to the correct thickness during the production process.
Used Car Inspection: When buying a used car, a coating thickness gauge can help detect repainted or repaired areas, indicating potential accident damage or rust repair.
Detailing and Paint Correction: Detailers use these gauges to assess paint thickness before undertaking paint correction procedures like polishing and compounding. This prevents over-aggressive correction that could damage the paint..
https://autozcrave.com/paint-protection-film/
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