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Coating Thickness Meters

Application of List-Magnetik coating thickness gauges

Which coating thicknesses can be measured?

  • Measurement of a non-magnetizable layer over steel or iron (FE metal)
  • Measurement of a non-metallic layer over a non-ferrous metal (NF metal)
  • Measurement of a non-metallic layer over galvanized steel (combination of FE and NF metal) with the duplex measuring method of the MEGA-CHECK DX
  • Measurement of rough, uneven layers using the scan measurement method of the MEGA-CHECK DX

FE-base material

All non-magnetic coatings such as varnish, paint, plastic, enamel, rubber, ceramic and galvanic coatings can be measured on iron and steel (FE).

NF-base material

On non-ferrous metals (NF) such as aluminum, brass, bronze, zinc, lead, copper or non-magnetic stainless steels, you can measure all non-conductive layers such as varnish, paint, plastic, anodizing, rubber.

Application of List-Magnetik coating thickness gauges


Limits of coating thickness measurement

We limit ourselves to magnetic induction and eddy current techniques for coating thickness measurement. Therefore, we are not able to offer infrared coating thickness gauges for ceramics, glass, or plastics.

List-Magnetik coating thickness gauges cannot be used with these coatings:

Due to base material

  • Non-metallic base material such as plastic, glass, GRP, carbon, ceramic
  • Strongly magnetic base material

Due to coating material

  • Nickel layer on steel, because nickel itself is magnetic.
  • NF coating on NF base, e.g., galvanized aluminum, silver/gold on lead, because the eddy current technique cannot detect a difference between the base and the coating when measuring the coating thickness
  • Wet or soft layers that would be changed by placing the probe on them

Due to the geometry

  • Thin layers under 3 µm
  • Layers on thin base material less than 0.5 mm
  • small contact surfaces under a radius of 2 mm (FE) or 6 mm (NF)
  • curved base under an outer radius/convex of 1 mm (FE) or 6 mm (NF) and under an inner radius/concave of 6 mm (FE) or 38 mm (NF)

Ambient conditions for coating thickness measurement

  • The recommended temperature range is 0-50 °C
  • The electronics are not designed for temperatures below 0° C
  • The probe could be damaged at temperatures above 50°C
  • • It is not possible to measure coating thickness under water using eddy current, as water itself is conductive

Coating thickness measurement for multilayer structures - galvanizing plus painting

With multilayer structures, two layers can be measured separately if a) the substrate is ferromagnetic, b) the first layer above the substrate is metallic-non-ferromagnetic and c) the top layer is non-conductive, for example paint or rubber, or a galvanized and then painted sheet steel.

With a single coating thickness measurement, the coating thickness of the paint and the galvanization are shown separately. The MEGA-CHECK DX coating thickness gauge offers duplex mode for this purpose.

Application of List-Magnetik coating thickness gauges


Coating thickness measurement with rough coating or rough substrate

In general, the minimum value is important for rough coatings. If the layer is rough, measurements must be taken at several points and the result analyzed statistically (minimum, maximum, average). It is important to record the "peaks" and "valleys" of the coating with as few gaps as possible. Use the MEGA-CHECK DX coating thickness gauge to move the probe over the surface. MEGA-CHECK DX can perform this task in scan mode. As the probe moves over the surface, changes are detected and statistical values are determined automatically.

Application of List-Magnetik coating thickness gauges


Measuring points that are difficult to reach, measuring in pipes

The pivoting probes of TOP-CHECK or MEGA-CHECK allow measurements to be taken at angles of up to 90°.

Special probes such as DX1-F or DX6-F are available for pipes or narrow openings. The pipe itself must not be too narrow, as the measurement is disturbed by reflections in narrow pipes.

Application of List-Magnetik coating thickness gauges


Transfer data from the coating thickness gauge to the PC or app

Do you need to document or archive your series of measurements taken with the coating thickness gauge? Do you want to detect extreme values and carry out statistical evaluations? Are you measuring at a location where you cannot see the coating thickness gauge display at all? Then our Lima Connect app for Android / iOS and the Lima Connect PC application are the right tools for you.

The Android app can also be used for voice output of online measurements if you have neither your coating thickness gauge nor your mobile smartphone or tablet in view.

The applications make it possible to process or integrate coating thickness measurement series in Office applications. Integration into CAQ systems is also possible.

The apps are available free of charge in the Google Play Store, Apple App Store or List-Magnetik website.

Application of List-Magnetik coating thickness gauges

Measuring instruments by List-Magnetik - Made in Germany - Quality and durability


Learn more about our products for coating thickness measurement

 

Measure paint thickness on cars, bridge railings and more

Measure paint thickness on cars, bridge railings and more

How thick is the paint layer on the car body or on the bridge railing? Measure the thickness of the paint layer to ensure optimal quality assurance in the paintwork. Here you will find the coating thickness measuring device especially suitable for experts and test engineers.

Measure difficult and complex coated surfaces

Measure difficult and complex coated surfaces

Measure the layer thickness on a wavy surface, in small radii or on thin sheet metal. If it becomes difficult to access, you can measure particularly well with special probes.

Swivel the probe of the coating thickness measuring device in difficult to access paint surfaces

Swivel the probe of the coating thickness measuring device in difficult to access paint surfaces

Sometimes, when measuring paint surfaces that are difficult to reach, the probe doesn’t get to the measuring point. A device with a swiveling probe that can be adjusted at an angle of 90° is ideal for this purpose. This means that coating thickness measurements can be carried out without problems.

Measure the layer thickness in each pipe

Measure the layer thickness in each pipe

If you have to measure layer thicknesses in pipes and recesses, there is an ingenious solution for this too. A long probe lance or a special telescopic rod is available for this purpose, which makes such measurements easy. This means that probes that can measure across the direction can penetrate…

Measurements of anodized layers and galvanizing

Measurements of anodized layers and galvanizing

Chemically applied coatings can also be measured just as easily as conventional paints. Whether anodized aluminum, galvanized steel or even galvanized steel with an additional layer of paint, all of this can be measured. A measurement of the galvanization thickness on steel is recommended from a layer thickness of 3 µm.

Save layer thickness measurement data on the PC or on the mobile app

Save layer thickness measurement data on the PC or on the mobile app

Once generated, measurement data often has to be transferred from the coating thickness measuring device to the PC or to the mobile app. This facilitates the evaluation or the transmission to painters, insurance companies or experts. The coating thickness measuring devices TOP-CHECK Dual and Ferro, MEGA-CHECK Profi and MEGA-CHECK Master…

Coating Thickness Meter TOP-CHECK

Go to the side Coating Thickness Meter TOP-CHECK

 

Coating Thickness Meter TOP-CHECK Ferro-1000

Go to the side Coating Thickness Meter TOP-CHECK Ferro-1000

 

Coating Thickness Meter MEGA-CHECK DX

Go to the side Coating Thickness Meter MEGA-CHECK DX

 

Catalog Coating Thickness Measuring

Download Catalog Coating Thickness Measuring (PDF)