Wet Paint Depth Gauge – Metric | Elcometer 3230

The Elcometer 3230 Wet Film Wheels Set is a high precision, accurate and easy to use wet paint thickness gauge which consists of a set of three wheels.

It is important that a coating is applied to the correct thickness. Applying too much wet coating will not only waste and money, but also there is also a possibility of the coating cracking during the curing process. Too little coating and there is a chance that the substrate will not be sufficiently covered. To control process variables, it is often desirable to measure whilst the film is still wet. Wet film measurements are also useful for systems where the dry film thickness can only be measured destructively. Imperial version available here!

By rolling the gauge through a wet coating, the center wheel eventually touches the film. This point on the scale indicates the thickness.

A convenient mounting handle for the wheel is available in two lengths; 15cm (6″) & 50cm (19″); please order separately.

When the volume to solids ratio of the coating is known (generally found on the product data sheet supplied by the manufacturer), the wet film thickness can be used to predict the dry film thickness.

Several measurement ranges between 0 to 25µm and 0 to 3000µm (0 to 1mil and 0 to 40mils) are available.

• Continuous scale produces ±5% measurement accuracy
• Suitable for flat and curved surfaces

Using a wet film wheel:

Roll the wheel through a wet coating, the center wheel eventually touches the film. This point on the scale indicates the thickness. When the volume to solids ratio of the coating is known, generally found on a product data sheet, the wet film thickness can be used to predict the dry film thickness. To use wheel on pipes, measure across the longitudinal axis (lengthways) of the pipe. On rough surfaces, measurements will be made from the surface peaks and represent the minimum wet film thickness.

The Elcometer 3230 central wheel is of a smaller diameter and is eccentric relative to the two outer wheels.