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sales@ndtone.comCoating Thickness Gauges & Probes
A coating thickness gauge — also known as a dry film thickness (DFT) gauge or paint thickness meter — measures the thickness of paint, galvanic, powder and other coatings without damaging the surface. NDT1 Kraft manufactures the K6-C and K5-C multifunctional coating thickness gauges together with a full range of interchangeable probes for ferrous and non-ferrous substrates.
Thickness gauges
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K6-C
The K6-C coating thickness gauge is a high-precision device designed for accurate thickness measurement of coatings on steel and non-ferrous metals. This coating thickness meter is widely used in industrial...
The K6-C multifunctional coating thickness gauge is a high-precision device designed for accurate measuring geometric and environmental parameters: coating thickness, groove depth, surface roughness, air humidity, air and metal surface temperature, dew point temperature, TΔ parameter.
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K5-C
The K5-C coating thickness gauge is a high-precision device designed for accurate coating thickness measurement on steel and non-ferrous metals. This coating thickness meter is widely used in industrial inspection....
The K5-C multifunctional coating thickness gauge is a high-precision device designed for accurate measuring geometric and environmental parameters: coating thickness, surface roughness, air humidity, air and metal surface temperature, dew point temperature.
Probes for thickness gauges
Probes for the Magneto-Inductive measurement method
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F0
F0 is a probe designed for thickness measurement of galvanic (zinc, chrome, cadmium, etc.) and dielectric (lacquer, paint, anodic oxide, powder, enamel, etc.) coatings up to 0.3 mm thick on...
F series Magneto-Inductive probes for K5-C and K6-C thickness gauges.
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F0/90
F0/90 is a probe for thickness measurement of galvanic (zinc, chrome, cadmium, etc.) and dielectric (plastic, paint, etc.) coatings up to 0.3 mm thick on small-sized parts (with small radius...
F series Magneto-Inductive probes for K5-C and K6-C thickness gauges.
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F0/90 Mini
Probe F0/90 Mini in the set with the specialised K6-C thickness gauges for thickness measurement of nonferromagnetic coatings on hard to reach places of products from ferrous metals.
F series Magneto-Inductive probes for K5-C and K6-C thickness gauges.
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F1
F1 is a probe designed for measuring the thickness of galvanic (zinc, chrome, cadmium, etc.) and dielectric (lacquer, paint, anodic oxide, powder, enamel, etc.) coatings up to 0.3 mm thick on...
F series Magneto-Inductive probes for K5-C and K6-C thickness gauges.
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F2
F2 is a probe designed for measuring the thickness of dielectric (lacquer, paint, powder, enamel, etc.) and current-conducting non-ferromagnetic (zinc, chrome, etc.) coatings up to 3 mm thick on quasi-planar...
F series Magneto-Inductive probes for K5-C and K6-C thickness gauges.
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F2-mini
The F2-mini is a compact version of the F2 probe designed for measuring the thickness of non-ferromagnetic coatings up to 3 mm thick on small ferromagnetic parts and in hard-to-reach...
F series Magneto-Inductive probes for K5-C and K6-C thickness gauges.
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F3
F3 is a probe designed for measuring the thickness of non-ferromagnetic (bitumen, mastic, plastic, heat-resistant, etc.) coatings on ferromagnetic parts with medium to high surface roughness. Features: Probe with a...
F series Magneto-Inductive probes for K5-C and K6-C thickness gauges.
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F4
F4 is a probe designed for measuring the thickness of non-ferromagnetic (bitumen, mastic, plastic, heat-resistant, etc.) coatings on ferromagnetic parts with medium to high surface roughness. Features: Probe with a...
F series Magneto-Inductive probes for K5-C and K6-C thickness gauges.
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F5
F5 is a probe designed for measuring the thickness of non-ferromagnetic (bitumen, mastic, plastic, heat-resistant, etc.) coatings on ferromagnetic parts with medium to high surface roughness. Features: Probe with a...
F series Magneto-Inductive probes for K5-C and K6-C thickness gauges.
Probes for the Eddy-Current measurement method
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NF0
NF0 is a probe designed for measuring the thickness of dielectric (anode oxide, paint, lacquer, powder, etc.) coatings on current-conducting non-ferromagnetic parts.
NF series Eddy-Current probes for K5-C and K6-C thickness gauges.
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NF1
NF1 is a probe designed for measuring the thickness of dielectric (anode oxide, paint, lacquer, powder, etc.) coatings on current-conducting non-ferromagnetic parts.
NF series Eddy-Current probes for K5-C and K6-C thickness gauges.
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NF2
NF2 is a probe designed for measurement of the thickness of thick-layer dielectric coatings on electrically conductive ferromagnetic or non-ferromagnetic substrates.
NF series Eddy-Current probes for K5-C and K6-C thickness gauges.
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NF3
NF3 is a probe designed for measurement of the thickness of thick-layer dielectric coatings on electrically conductive ferromagnetic or non-ferromagnetic substrates.
NF series Eddy-Current probes for K5-C and K6-C thickness gauges.
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NF4
NF4 is a probe designed for measurement of the thickness of thick-layer dielectric coatings on electrically conductive ferromagnetic or non-ferromagnetic substrates.
NF series Eddy-Current probes for K5-C and K6-C thickness gauges.
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NF5
NF5 is a probe designed for measurement of the thickness of thick-layer dielectric coatings on electrically conductive ferromagnetic or non-ferromagnetic substrates.
NF series Eddy-Current probes for K5-C and K6-C thickness gauges.
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NF6
NF6 is a probe designed for measurement of the thickness of thick-layer dielectric coatings on electrically conductive ferromagnetic or non-ferromagnetic substrates.
NF series Eddy-Current probes for K5-C and K6-C thickness gauges.
Probes for the Eddy-Current phase measurement method
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PH1
PH1 is a probe designed for measuring the thickness of electrolytic nickel and other galvanic coatings on parts made of ferrous metals and alloys, including: surfaces with roughness up to...
PH series Eddy-Current phase probes for K5-C and K6-C thickness gauges.
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PH3
PH3 is a probe designed for measuring the thickness of galvanic coatings on small parts made of ferrous metals and alloys, including: surfaces with roughness up to Rz 200; coatings...
PH series Eddy-Current phase probes for K5-C and K6-C thickness gauges.
Specialized probes
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FxP, NFxP
Probe for thickness measuring inside pipes made of ferromagnetic (FxP) and non-ferromagnetic (NFxP) materials. Particulars Design of probes allows control in manual mode the pipes opened from two sides. Appliances...
F and NF series probes for measuring thickness of internal pipe coatings.
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FR1
FR1 is a probe designed for measuring: concrete cover thickness and locating reinforcement bars; thickness of special-purpose protective coatings (up to 70 mm thick). Features: Impact-resistant probe designed for field...
Probes for measuring concrete cover thickness and locating reinforcement bars.
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FR2
FR2 is a probe designed for measuring: concrete cover thickness and locating reinforcement bars; thickness of special-purpose protective coatings (up to 120 mm thick). Features: Impact-resistant probe designed for field...
Probes for measuring concrete cover thickness and locating reinforcement bars.
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R
The probe is designed for measuring groove depth and assessing surface roughness after sandblasting and shot blasting prior to painting works.
Probes for measuring groove depth and assessing surface roughness.
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THDC
Probe for measurement of metal surface temperature, air temperature, relative air humidity, temperature of dew point and calculation of the difference between metal surface temperature and temperature of dew point...
Probes for measuring environmental parameters: air humidity, air and metal surface temperature, dew point temperature, TΔ parameter.
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THD
Probe for measuring of air temperature, humidity and dew point during execution of paint works. Particulars probe of integral type with wide limits of measuring.
Probes for measuring environmental parameters: air humidity, air temperature, dew point temperature.
Reference specimens
Our gauges combine three non-destructive measurement methods. The magneto-inductive method measures non-magnetic coatings (paint, zinc, chrome, powder, enamel) on steel and other ferromagnetic substrates. The eddy-current method measures dielectric coatings (anodic oxide, paint, lacquer) on non-ferrous metals such as aluminium and copper. The phase eddy-current method measures galvanic coatings — for example nickel on steel, or zinc thickness under a separate layer of paint. Dedicated, specialised probes are available for each method and application.
Typical applications include protective and decorative paint inspection, hot-dip and electroplated galvanizing, powder coating, anodizing, printed-circuit-board copper, and concrete cover with rebar location. The K6-C additionally measures groove depth, surface roughness after blasting, and climatic parameters — air and surface temperature, humidity, dew point and the TΔ value — for complete surface-preparation control before painting.
Measurements conform to international standards such as ISO 2178, ISO 2360 and ISO 2808. Every gauge is supplied with calibration foils and reference specimens.
FAQ
Ferrous or non-ferrous — how do I choose a probe?
Use a magneto-inductive (F-series) probe for non-magnetic coatings on steel and other ferromagnetic substrates, and an eddy-current (NF-series) probe for dielectric coatings on non-ferrous metals such as aluminium or copper. Phase eddy-current (PH-series) probes are used for galvanic coatings on steel.
Which standards apply to coating thickness measurement?
The most common are ISO 2178 (magnetic method), ISO 2360 (eddy-current method) and ISO 2808 (general coating thickness methods).
Can I measure zinc coating thickness under paint?
Yes. A phase eddy-current probe (PH-series) measures a galvanic layer such as zinc separately from the paint layer above it.
Do the gauges measure on both ferrous and non-ferrous metals?
Yes. With the right probe the K6-C and K5-C measure coatings on both ferromagnetic (steel) and non-ferromagnetic (aluminium, copper) substrates.