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Analysis of Multi-layer Coating Systems

A correctly applied paint system, e.g. a primer-undercoat-gloss, will have the correct components applied in the right order at the appropriate film thicknesses. We can check all of the above provided we are supplied with one or more thumbnail-sized intact flakes that include all the layers present from the topcoat down to the substrate. In some cases all that is required is to section the flake and examine it using optical microscopy. This method will enable us to determine the overall film thickness of the flake. The thickness of the individual layers can also be measured providing there are sufficient differences in colour between them.

The techniques used for the analysis of fully formulated coatings can, in principal, be applied to the identification of the individual layers of a paint flake. In practice the only limitations are the size of the flake and the ease with which it can be dissected to reveal the layer of interest. In situations where an elemental analysis is sufficient, Scanning Electron Microscopy-Energy Dispersive Spectrometry (SEM-EDS) is particularly useful since it enables the elemental composition of the individual paint layers to be determined without the need to dissect out each one.

Coatings News

Press Release Nov 17

9th November 2017

PRA granted UKAS accreditation

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Irfab releases first Global Industrial Coatings Market study module - Protective

23rd January 2017

PRA Irfab have released the first module of the new Global Industrial Coatings Market study, Protective.

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Woodcoatings Congress Proceedings

11th January 2017

Did you miss PRA’s 10th International Woodcoatings Congress? You can now buy a copy of the full proceedings and papers from the European Coatings Website!

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Christmas Shutdown

21st December 2016

We will be closed between Saturday 24th December 2016 and Monday 2nd January 2017.

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PRA Newsletter

7th December 2016

Click on the link to view PRA's new quarterly Newsletter

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PRA Press Release November 2016

30th November 2016

Notice of Management Buyout of PRA from Pera Technology Solutions

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Welcome to new Member Olin Epoxy!

21st October 2016

Welcome to our newest member - Olin Epoxy!

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Welcome to M&K Ghana

28th September 2016

PRA are pleased to welcome M&K Ghana to membership.

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Welcome to our new Member Synthomer

14th September 2016

Welcome back to PRA Synthomer!

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Welcome Dupre Minerals to PRA

28th July 2016

PRA is delighted to welcome another new member to the PRA - Dupre Minerals

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Autumn/Winter Training Courses Announced

22nd July 2016

PRA is delighted to preview its Autumn/Winter Training Courses for 2016.

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