Check for Perfection With a Paint Thickness Gauge

Are you a car enthusiast looking for a way to measure the depth of your car's paint job? Look no further than our list of the six best paint thickness gauges to measure car paint depth!

Paint thickness gauges are an essential tool for automotive professionals and hobbyists alike. They measure the paint layer thickness of cars, trucks, boats, aircraft, and other vehicles. Paint thickness gauges allow you to determine the health of a vehicle's paint job to ensure it is in peak condition before making any repairs or refurbishments.

The paint layer can also be used to determine the age of a vehicle, as paint thickness tends to decrease with time. By accurately measuring paint layer thickness, you can easily choose when to repaint or fix any imperfections in the finish.

Paint thickness gauges are also essential for automotive restoration projects, as they allow you to accurately replicate original finishes and ensure any new parts or paint match up perfectly with the existing bodywork. With a paint thickness gauge, you can ensure your vehicle looks as good as it did when rolling off the assembly line.

How Mechanicaddicts Chooses the Paint Thickness Gauge

At Mechanicaddicts, we use a few critical criteria when selecting our Paint thickness gauge: accuracy, durability, and ease of use.

Accuracy is critical for any paint thickness gauge. We look for meters offering a wide range of readings in millimeters and microns. This allows us to accurately measure and monitor the thickness of the paint, ensuring a perfect finish every time.

Durability is also essential when choosing the correct Paint thickness gauge, as you'll want one that can withstand the rough-and-tumble environment of a professional garage. We look for models made of high-quality materials and designed to last, so you can be sure your investment won't break down after a few months of use.

ERAY Mil Thickness Gauge

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Why We Like This Coating Thickness Gauge

The ERAY Mil Thickness Gauge is the ideal tool for measuring coating thickness. This paint thickness gauge features a dual probe Fe/NFe design, allowing you to measure up to 2000um(78.7mils) in four general groups with a maximum of 320 readings when power is off and 80 lessons per group when powered on.

The intuitive user interface features a backlight LCD, allowing you to set parameters before use easily. Additionally, this tool makes storing, recalling, and deleting readings straightforward. The ERAY Mil Thickness Gauge is the perfect solution for accurate coating thickness measurements.

What You Should Know

The ERAY Mil Thickness Gauge is an excellent choice for any use case that requires accurate measurements. This paint thickness meter has a CD and USB cable, allowing users to view and analyze the data transmission results via a compatible computer. Additionally, this unit has an alarm function that can be set for high or low limits to provide added security.

Furthermore, its use case is versatile, suitable for laboratories, workshops, paint shops, automobiles, shipbuilding, and aircraft industries. ERAY offers 24 months of free replacement on this product as a bonus. Therefore, if you're looking for a reliable and accurate thickness gauge with multiple features, the ERAY Mil Thickness Gauge is an excellent choice.


  • Manufacturer:‎ ERAY
  • Product Dimensions ‏ : ‎ 4.65 x 2.05 x 0.91 inches; 3.2 Ounces
  • Batteries: ‎1 AAA batteries required
  • Measuring range of this paint thickness: 0 to 2000um(78.7mils)

RDINSCOS Thickness Gauge TC100

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Why We Like This Coating Thickness Gauge

The RDINSCOS Coating Thickness Gauge is a versatile, non-destructive testing tool perfect for professional auto body and car paint shops. This gauge uses dual technology to accurately measure the thickness of steel and aluminum coatings without damaging the substrate surface.

It is the ideal device for checking the paint thickness of used cars, powder coating, anodized aluminum, bathroom fittings, bike frames, stadium seats, outdoor sheds, furniture, swing sets, cabinets and lockers, computers, appliances, and toys. This meter offers a reliable way to measure coating thickness quickly and accurately with its easy-to-use design.

What You Should Know

Paint thickness gauges from RDINSCOS are a must-have tool for auto body shops and car dealerships. Our paint depth gauge offers an easy-to-read display with metal type, working mode, battery status, and readings in µm or mils units. We are known for our affordability, quality, and reliability, backed by a 3-year-replacement warranty.

If our product ever lets you down, we will replace it with no questions asked - ensuring peace of mind that you are making a quality purchase, buying used cars? Use this gauge to secure each panel with about the same thickness of paint, preventing future costly surprises.


  • Material: Aluminum
  • Color: Black
  • Item Dimensions LxWxH:4.72 x 1.57 x 1.38 inches
  • Item Weight: 180 Grams
  • Voltage: 9 Volts
  • Brand: RDINSCOS
  • Product Dimensions: 5.91"L x 1.97"W x 1.97"H

VVV-Group Coating Thickness Gauge

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Why We Like This Coating Thickness Gauge

The VVV-Group Coating Thickness Gauge is the perfect tool for getting reliable and accurate readings in various settings. The gauge uses a 1000 mAh lithium battery that can be directly charged by USB cable, with memory storage of up to 1500 readings in 100 groups. Additionally, this device features multiple automatic shutdown time settings for added convenience.

The device also has a large and colorful display with LED backlight and high-definition data display, making it easy to read each value even in low light conditions. The four-way screen rotation (0°,90°, 180°, 270°) allows you to adjust the viewing angle for any application. With this durable and influential coating thickness gauge, you can get precise and accurate readings every time.

What You Should Know

This VVV-Group Coating Thickness Gauge is ideal for any professional in corrosion protection, paint shop, electroplated, and other industries. It offers easy-to-use operation with a high precision measuring resolution of 0.01 mils and a range of 0-51 mils.

This gauge will quickly become invaluable as it can accurately measure smooth, rough, thin, or curved surfaces and automatically detect different substrates such as aluminum, steel, and iron.

Its ergonomic design makes the gauge easily fit in your hand, providing a comfortable grip for accurate readings every time. No matter the application, this VVV-Group Coating Thickness Gauge will give you reliable results that you can trust.


  • Brand: VVV-Group
  • Material: Iron, Steel, Aluminum, Zinc, Copper, Bronze, and other metals
  • Item Weight: 160 Grams
  • Measuring range of this paint thickness: 0-51 mils

NexDiag NexPTG Professional Best Clear Coat Measure Tool

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Why We Like This Coating Thickness Gauge

The revolutionary NexPTG Professional Best Clear Coat Measure Tool is a must-have for any automotive professional. This wirelessly operated thickness gauge offers ten measurements per second and displays exceptionally accurate results.

It can easily detect the coatings on steel and aluminum components, saving you time and energy throughout your inspection process. Whether you're inspecting classic cars or brand-new models, the NexPTG Professional Best Clear Coat Measure Tool covers you.

Enjoy quick and accurate readings every time, helping you do the job in record time. With NexDiag's top-of-the-line technology, you can trust that your inspections are valid and reliable.

What You Should Know

The NexDiag NexPTG Professional is the perfect tool for determining the thickness of your vehicle's clear coat. The convenient, movable head allows you to access concave and convex elements with precision and accuracy easily.

At the same time, the dedicated application can be installed on iOS or Android devices to get accurate readings quickly and efficiently. With this advanced device, you can rest assured that your vehicle's clear coat will be accurately measured and kept in perfect condition.


  • Brand: NexDiag
  • Power Supply: Rechargeable Lithium Battery (1 pc)
  • Measuring range of this paint thickness: 0 to 2,500um
  • Item Weight: 1.3 Pounds
  • Product Dimensions: 4.8 x 1.96 x 1.1 inches

Reenwee Automotive Coating Thickness Gauge

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Why We Like This Coating Thickness Gauge

The Reenwee Automotive Coating Thickness Gauge is essential for any automotive technician. This revolutionary device lets you quickly and accurately measure the thickness of paint coatings on your car’s body.

It features automatic calibration and data hold capability, plus a mini size with LCD that makes it easy to use. There are two units available, mm/mil, that are perfect for measuring a variety of coatings.

The Reenwee Automotive Coating Thickness Gauge is an indispensable tool for any automotive service center and gives you the confidence that your job will be done with accuracy and precision.

What You Should Know

The Reenwee Automotive Coating Thickness Gauge is a powerful tool for automotive professionals. It can be used to measure the paint thickness of cars non-destructively.

This high-precision device features a High Contrast Backlight LCD and requires zero calibration, making it an efficient solution for any garage or body shop. With its user-friendly design and accuracy, the Reenwee Automotive Coating Thickness Gauge is a reliable and hassle-free way to measure paint thickness.


  • Brand: Reenwee
  • Material: Aluminum
  • Item Dimensions LxWxH: 3.28 x 1.41 x 0.86 inches
  • Item Weight: 1.38 Ounces

Wintact Paint Coating Thickness Gauge

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Why We Like This Coating Thickness Gauge

The Wintact Paint Coating Thickness Gauge offers professional-grade accuracy and precision for an efficient paint inspection. This high-quality instrument has a wide measuring range of 0 to 1300um (0 to 51 mils) with an accuracy of ±(3%H+1μm).

It also features a resolution of 0.1 mils and can save up to 1500 readings in 100 groups. The gauge can display maximum/minimum data points, standard deviations, and mean values. Additionally, you can choose between single or continuous measuring modes with the speed of a high-end car paint inspection.

You can also set a low and high reading limit that triggers an alarm if the coating thickness is below or above the limits. This paint thickness gauge provides reliable performance for a professional-grade finish.

What You Should Know

Wintact Paint Coating Thickness Gauge provides a precision and reliable way to measure the thickness of paint. Its micron accuracy probe can automatically identify magnetic and non-magnetic metal substrates, providing essential and zero calibration with an easy-to-read display and usage.

Everything you need for your tests comes in one package, including the WT230 Coating Thickness Gauge meter, aluminum and Iron plate calibration sets, five calibration foils, a USB cable, and an English user manual. With Wintact Paint Coating Thickness Gauge, you can always guarantee accuracy in paint thickness measurements.


  • Measuring range: 0~1300/51mil
  • Resolution: 0.1µm/0.1mil
  • Accuracy: ≤150µm ±5µm, 150µm ±(3%H+1µm)
  • Manufacture:  ‎Wintact
  • Item Dimensions LxWxH: ‎5.9 x 3.35 x 1.97 inches

Frequently Asked Questions about Paint Thickness Gauge

1. What Is a Paint Thickness Gauge?

A paint thickness gauge measures the thickness of non-magnetic coatings on ferrous or non-ferrous metal surfaces, such as primer, paint, enamel, and plastic.

2. How Does a Paint Thickness Gauge Work?

A paint thickness gauge sends an electromagnetic current through the coating and measures its resistance.

3. What Are the Benefits of Using Electronic Coating Thickness Gauges?

The main benefit of using a paint thickness gauge is that it accurately measures the thickness of your paint or primer layer without having to strip the paint and measure it directly. Most coating thickness gauges can measure how much paint depth is on a painted surface.

4. What Are Some Common Uses of a Paint Thickness Gauge?

Paint thickness gauges are commonly used for quality control in automotive painting and for measuring the initial thickness of a paint job.

5. What Is the Accuracy of a Paint Thickness Gauge?

The accuracy of a paint thickness gauge depends on the model and brand but typically ranges from 0.001-0.006mm for most models. Some higher-end models can achieve accuracies down to 0.0005mm or even lower.

6. What Is a Good Paint Thickness Reading?

A suitable total paint thickness reading on a car should range between 0.6 and 1.2 mils (thousandths of an inch). Paint thickness readings outside of this range can indicate that the color has been repaired or replaced, which could affect the car's value.

7. Do I Need a Paint Thickness Gauge?

Yes, a paint thickness gauge is an essential tool for measuring the maximum thickness of a paint job and can help you determine if the paint job is of good quality or not.

A paint thickness gauge is also helpful for detecting any rust or corrosion underneath the paint, which can be a sign of poor quality.

8. Can a Paint Thickness Gauge Determine Between Non-ferrous Metals and Non-magnetic Metal Surfaces?

No, a paint thickness gauge is not designed to measure the difference between non-ferrous and non-magnetic metal surfaces. Paint thickness gauges are designed to measure the maximum coating thickness applied to a ferrous metal surface.

Non-ferrous metal substrates, such as aluminum, copper, brass, and stainless steel, are not magnetic and cannot be measured with a paint thickness gauge. Non-magnetic metal surfaces like chrome can not be measured with a paint thickness gauge.

9. Can a Paint Thickness Gauge Determine the Depth of the Paint System on Steel Alloys?

Yes, a paint thickness gauge can be used to measure the thickness of a paint system on steel alloys. The paint thickness gauge uses a magnetic eddy current to measure the paint system's thickness without physically removing the coating. This non-destructive method can accurately measure the paint thickness in both mils and microns.

Final Thoughts About Paint Thickness Gauge

A paint thickness gauge is invaluable for automotive enthusiasts and professionals who want to ensure their vehicle is painted correctly. By accurately measuring the paint layers on a car, you can be sure that your vehicle looks great and is safe from corrosion or other damage.

With a digital paint thickness gauge, you can get instant readings without worrying about visual inspection. Whether you're a professional paint technician or an automotive DIY enthusiast, a paint thickness gauge is essential to keep your car looking great for years.

Thank you for reading!

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