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Trust 3nh’s industry-leading technology for accurate coating measurements. Our gauge delivers pinpoint readings for paint, plating, and powder coats—ideal for automotive, manufacturing, and professional inspection tasks.

Multifunctional High-Performance  Coating Thickness Gauges

3NH truly is unmatched when it comes to the precision and sturdiness of their coating thickness gauges. They continue to meet the multifunctional and diverse needs of modern industries with their advanced electronics, user-friendly designs, and multifunctional probe designs.

Whether it is a mini coating thickness gauge for mobile inspection, or a mil thickness gauge for powder coating, 3NH focuses on providing reliability regardless of the coating thickness gauge price.

Explore 3NH’s complete coating thickness measurement instruments and experience advanced precision with every measurement.


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Types of 3NH Coating Thickness Gauge Products

Magnetic Coating Thickness Gauge YT8200

Coating Thickness Gauge Ferrous and Nonferrous YT6300

Coating Thickness Measuring Instruments YT8300

Coating Thickness Measurement Gauge YT8500

What is a Coating Thickness Gauge?

 

Coating thickness gauge, coating thickness meter gauge, and paint coating thickness gauge are synonymous. Each of these devices is capable of measuring the thickness of coatings that are applied to a variety of surfaces like paints, powder coatings, plating, anodizing, or any other type of finishing.

 

More precisely, the instruments determine the thickness of coatings on layers of ferrous and nonferrous metals, including steel and aluminium, as well as on non-metal substrates such as plastic, wood and other substrates. Depending on the type of gauge, you might use:

 

Ultrasonic coating thickness measuring devices work on non-metallic surfaces like plastic and wood.

Common Applications of Digital Coating Thickness Gauges

Assisting in the following areas:

 

● Automotive manufacturing and refinishing

● Coating, anodizing, and powder applying

● Tank and galvanizing metal

● Defense and ship industries paint

● Construction and building maintenance

● Paint on wood and paint on furniture

● Interceptor coating on plastic pieces.


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Automotive Paint Thickness Meters

 

In the automotive industry, the precision and the quality of the coating application are important for the appearance and protection of the vehicle. Paint thickness meters aids manufacturers, body shops, and used-car inspectors to determine the value of the vehicle on which the paint cars are used.

 

These digital gauges detect signs of repainting, uneven coatings, and hidden damage beneath the paint layers. For car professionals, the measurement of the clear coat thickness determines whether the refinishing work meets the OEM standards to guarantee the satisfaction of their clients.

 

As an illustration, the 3NH paint coating thickness gauge is capable of high-resolution readings and detection of micro-variations across panels which is important for automotive inspections and maintenance.

How Does a Coating Thickness Gauge Function?

A coating thickness gauge works on different principles based on the measurement method and type of substrate.

 

● Ultrasonic Method – Using this method, you can check the thickness of non-metal materials, such as wood, plastic, or composites, by sending ultrasonic waves through the coating and determining thickness by the time it takes for the waves to echo.

● Some advanced tools, like 3NH’s digital coating thickness gauges, incorporate several methods into one and detect the type of substrate automatically, switching the mode of measurement to fit the user.

● Ultrasonic gauges are very useful and convenient, but other gauges can also provide very accurate dry film thickness gauges.

The Importance of Dry Film Thickness Measurement

The dry film thickness (DFT) needs to be measured because it reflects the thickness of coating that remains after drying, or curing. DFT must be measured to confirm the coating is plentiful enough to provide protection and resist corrosion, as well as for the visual look that is desired.

 

A coating that is too thin to provide enough protection will cause the substrate to corrode very quickly, while too thick of a coating can cause cracking and peeling, as well a waste of the coating material. The dry film thickness must be measured regularly to ensure it conforms to the standard: ISO 2808, ASTM B499, and SSPC-PA2.

Step-by-Step Guide to Using a Digital Paint Thickness Tester

 

1. Prepare the surface: Use a clean, dust-free sample area.

2. Calibrate the gauge: Use zero plates or certified calibration foils prior to testing.

3. Select substrate type: The material can be determined as either ferrous or nonferrous.

4. Place the probe: Position the probe to be perpendicular to the surface and press slowly.

5. The thickness of the coating can be seen instantly on the digital display.

6. For proper measurements, the average of all readings should be calculated.

 

By following these steps, coating thickness measurements can be made reliable and repeatable every time.

The Importance of Calibration Before Testing Coating Thickness Gauges

Calibration helps to achieve the best results. In time, environmental conditions and even the probe can get worn out, affecting readings. Systematic errors can be greatly reduced by calibrating coating thickness measuring instruments prior to every use.

 

3NH coating thickness gauges offer single and multi-point calibrations using standard foils, allowing calibration on different surfaces and materials.

Choose the Right of Coating Thickness Gauges

When selecting a coating thickness measurement tool, consider the substrate type: Ferrous, nonferrous, or non-metallic.

The range that can be measured and resolved

● Analog or digital display

● Accuracy and repeatability

● On-site measurement portability

● Calibration software and connectivity

● Coating thickness gauge price compared to needed precision

Choosing appropriate gauge thickness measuring tools helps save time and costs due to high consistency.

Advantages of 3NH Thickness Gauges

3NH high-quality coating thickness gauges offer best precision, sturdiness, and convenience. Major benefits includes:

 

● Ferrous and nonferrous substrates

● Instant measurement digital display

● Substrate auto detection and mode interchange

● Glass and all other substrates.

● Portable and light

● Battery long life and data storage

● High stability in tough industrial condition.

 

These make 3NH gauges best for thickness measurement of powder coating, paint inspection, and coating on metals.


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FAQs About  Coating Thickness Gauge

A magnetic induction gauge measures galvanized coatings by sensing the zinc coating on steel and iron. The measurement tells how thick the protective coating is. This is done to ensure the prevention of rusting.  


Measuring zinc coating thickness is most commonly using magnetic induction. The gauge measures how far the magnetic probes are to the metal base under the zinc. This is the most reliable way to measure the thickness and the preservation of the galvanization.

A coating thickness gauge measures film layers by identifying shifts in magnetic flux, eddy currents, or ultrasonic echoes as they penetrate the coating. The gauge calculates thickness based on the magnitude of these signals. This universally accepted approach results in quick, reliable, and non-invasive measurements. 

Consistency in calibration is important to account for imbalances arising from wear and tear of the probe, probe pressure, variation from the environment, and fluctuations in daily usage. This is also necessary to maintain the best quality to various international standards.


Different types of substrates require different kinds of digital gauges. Magnetic gauges are for ferrous metals, eddy current gauges are for non-ferrous metals and ultrasonic gauges are for any non-metal composites like plastics. Careful selection of a gauge is the most important factor for obtaining accurate measurements.  


Further Coating Thickness Gauge Applications and Solutions

Cover Materials Color Measurement Solutions
Measure Color Differences of Foods
Glass, Film Transparent and Semi Transparent Materials Measurement
Plastic Product Color Detection
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