Coulombic Film Thickness Meter

The coulometric thickness gauge calculates the coating thickness by dissolving the metal coating through an electrolyte and measuring the electrical charge consumed during the dissolution process. It is used to detect the thickness of electroplated layers and anodized coatings, with applications in surface treatments for electronic components and automotive parts.
Selection
When selecting, consider the measurement range covering sample thickness, matching the substrate type with the electrolyte, ensuring the sample size fits the fixture, meeting the precision requirements of the process, aligning operational convenience with personnel habits, and ensuring stable maintenance costs and consumable supply.

Terms

Standards

Instruments

Measuring wet-film flow thickening in the vertical state, controlling the physical performance of the coating to select the appropriate wet film thickness to ensure uniform film thickness, Film thickness range 450-675μm, in line with GB/T 9264 and ASTM D 3730 standards.

$ 146.00

In line with ISO2808-1974 standard, the range is 0~ 150μm, the accuracy is not more than 5μm, can measure the wet film thickness and estimate dry-film thickness, suitable for laboratory and pRoduction control.

$ 127.00

The formed pRoduction process is adopted, the wet film thickness is 42 μm, the application width is 60mm, the preparatory coating is uniform and the film thickness is accurately controllable, which is convenient for comparative analysis by conversion of dry-film thickness by Solid content.

$ 120.00

Using smooth steel bar design, no winding steel wire or pressurized groove, film thickness is 0μm, diaMeter 6.35mm, total length 400mm, suitable for machine control film thickness.

$ 144.00

The 4-sided design can complete different thickness films at one time, using wear-resistant and corrosion-resistant stainless steel material, film thickness 150-300μm, application width 105mm, can accurately control wet-film or dry-film thickness.

$ 235.00

In line with ISO2808 standard, the range is 0~ 500μm, the accuracy is not more than 5μm, can measure the wet film thickness and estimate dry-film thickness, suitable for laboratory and pRoduction site.

$ 127.00

304 stainless steel material, wet film thickness of 200 μ m, Spreader width of 250mm, formed pRoduction process to ensure uniform film, suitable for precision experimental needs.

$ 157.00

Adopt scale differential head to adjust film Film thickness, Graduation 10 μ m, film range 0~ 5000 μ m, accuracy +/- 5 μ m, drawdown blade straightness +/- 2 μ m, die steel drawdown blade wear resistance corrosion resistance.

$ 280.00

Spreader formed process to ensure uniform, wet film thickness 36.6μm, application width 300mm, suitable for accurate film thickness control, the total length of 400mm easy to operate.

$ 167.00

Wire-wound design, wet film thickness 118.9μm, diaMeter 9.5mm, stainless steel material, wear resistance and corrosion resistance, suitable for preparing specific film thickness wet-film.

$ 167.00

The formed pRoduction process ensures film uniformity, wet film thickness 12 microns, application width 250mm, stainless steel provides durability and precise film thickness control.

$ 157.00

Using stainless steel material, application width 300mm, wet film thickness 77.7μm, film accuracy of 0.1 micron to ensure uniform film.

$ 160.00

Adopt scale differential head to adjust film thickness, Graduation 10μm, film range 0~ 5000μm, accuracy +/- 5μm, drawdown blade straightness +/- 2μm, suitable for precise coating preamative.

$ 299.00

Formed pRoduction process to achieve 250 micron film Film thickness, 25cm Spreader width, wear-resistant stainless steel material to ensure long-term use Stability, matching handle for easy scraping operation.

$ 157.00

Made of 303 stainless steel, wet film thickness 102.9 microns, application width 300mm, suitable for high abrasion and high viscosity experiments, uniform film operation is simple.

$ 167.00

Articles

Selection Differences Between Rapid Moisture Analyzers and Coulometric Moisture Analyzers
This article mainly introduces the differences between a rapid moisture analyzer and a coulometric moisture analyzer.
Coulometric thickness gauge measures the sealing quality of anodic oxide films.
This article introduces a method for assessing the sealing quality of anodic oxide films using a coulometric thickness tester. The sealing quality affects the corrosion resistance and wear resistance of the oxide film. Based on electrochemical principles, the coulometric thickness tester evaluates the sealing effectiveness by measuring the electric charge required to dissolve the oxide film, providing objective and repeatable results.
Application of Coulometric Moisture Titrator in Moisture Detection of Electronic Components
Coulometric moisture titrators operate based on the principle of electrolysis, directly calculating the moisture content in samples by measuring the electrolytic charge without the need for calibration. In the field of electronic components, moisture can lead to issues such as corrosion and reduced insulation, making its detection critically important.
Selection Basis for Karl Fischer Titration: Volumetric vs. Coulometric Methods
There are two methods for Karl Fischer moisture titrators: volumetric and coulometric. The volumetric method calculates moisture by measuring the volume of a reagent with a known concentration that is consumed, making it suitable for samples with higher moisture content, such as those in the range of a few thousandths or more.
Total Chlorine Content Microcoulometric Titration Detector for Pulp
This article introduces a method for detecting the total chlorine content in pulp using a microcoulometric titrator. The principle involves generating a titrant through electrolysis, which reacts with chloride ions produced from the combustion of the sample. The chlorine content is accurately calculated by monitoring the amount of electricity consumed.
Coulometric Method Coating Thickness Gauge for Non-Destructive Measurement of Precious Metal Coatings
The coulometric coating thickness gauge measures the thickness by calculating the amount of electricity required to dissolve the precious metal coating through the principle of electrolytic dissolution. This method is non-destructive to the overall sample, only forming tiny electrolytic spots.
Karl Fischer Moisture Analyzer Determines Moisture Content in Powder Coatings
This article introduces the method of determining the moisture content in powder coatings using a Karl Fischer moisture analyzer. Excessive moisture content in powder coatings can affect the quality of the coating, leading to issues such as bubbles. The Karl Fischer method measures moisture through the quantitative reaction of iodine and sulfur dioxide, which is divided into volumetric and coulometric methods.
Karl Fischer Moisture Analyzer for Determining Water Content in Coatings
This article introduces the method for determining the water content in coatings using the Karl Fischer moisture analyzer. The principle is based on the quantitative reaction of iodine and sulfur dioxide in the reagent with water. The coulometric method is commonly used to generate iodine through electrolysis and calculate the moisture content by measuring the electrical charge.
Selection of Coating Thickness Measurement Methods: Coulometry vs. Dissolution in Electrolytic Thickness Gauges.
This article compares two techniques in electrolytic thickness gauges: the coulometric method and the dissolution method. The coulometric method measures coating thickness through electrochemical dissolution, making it suitable for single-layer metal coatings with simple operation and high accuracy. The dissolution method, on the other hand, measures thickness via chemical dissolution, making it more appropriate for multilayer or complex coatings.
Difference between halogen moisture analyzer and Karl Fischer moisture analyzer
The core difference between halogen moisture analyzers and Karl Fischer moisture analyzers lies in their measurement principles. Halogen moisture analyzers are based on the thermogravimetric method, while Karl Fischer moisture analyzers rely on titration principles, either volumetric or coulometric, which involve quantitative chemical reactions specifically targeting water molecules.