The use of Painting Plates and Electronic Dry-Film-Thickness Meters

Elegant Line Road Painters has been in the industry for over 36 years. And over the years, we have been involved in hundreds of road marking projects, both locally and internationally.

In all the work we do, we make sure that the highest quality paint is used. In addition, all road paint needs to have a certain thickness, in order to be long lasting and comply with the standard specifications as outlined by Colto.

At Elegant Line, we use a range of different methods to test the thickness of the road paint at various stages of the application of the paint.



The film-thickness of the coating can be tested by using thin metal “painting-plates” that the coating is sprayed onto whilst doing the application work on a regular and random basis.

These painting plates do not only provide us with a clear measure of the thickness, they also provide the client or engineer with the necessary proof of correct application. This is done by using random numbers and letters on plates that engineers can track back on the road surface that was painted. Because no two plates are the same, engineers can see exactly where the plate was used.


Dry-Film-Thickness Tester


Once the paint on the painting-plates has had sufficient time to dry, we further test the thickness by using an electronic “dry-film-thickness” tester, also referred to as coating thickness gauge.

The results of the test, which are shared with the client and/or engineer will provide conclusive proof of the correct application.

The digital coating thickness gauge we use at Elegant Line Road Painters meets the standards of both ISO2178 and ISO 2361 as well as DIN, ASTM and BS. It can furthermore be used both in the laboratory and in harsh field conditions.

It has been reliably established by credible independent Engineers that a dry film thickness (DFT) of 300 microns meets and exceeds the target spread-rate minimum of 0,43 L/m2 that is specified in COLTO/SABS/SANS documents.

With the above process in place and available to site Engineers and Q.A. Inspectors, it is a quick, simple and reliable method to determine if the correct material application standards are being achieved.


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