Examples of this type of analysis include the identification of preservatives in treated timber, the detection of metal pre-treatments and the identification of surface contaminants giving rise to adhesion problems.
The chemistry and topography of surfaces have a profound influence on the service life of coatings applied to them and for this reason we employ a variety of techniques to investigate surface properties. Fourier Transform Infrared spectroscopy (FTIR) coupled with attenuated total reflectance (ATR) techniques can provide information on the chemistry of the topmost few microns of a surface. In situations where first few monolayers of a surface are of interest then X-ray photoelectron spectroscopy (XPS) or secondary ion mass spectrometry (SIMS) may be necessary.
There are situations where a visual representation of the surface is required and here the techniques range in sensitivity from optical microscopy through scanning electron microscopy (SEM) to atomic force microscopy (AFM). The latter technique is capable of mapping the topography of a surface virtually down to the atomic level.
None of the above techniques are applicable if you need to assess the state of blast cleaned steel prior to painting. We can supply you with test papers that will enable you to carry out a simple, rapid, on-site test for the soluble iron salts that, unless removed, will be the starting point for under-film corrosion.
PRA Irfab have released the first module of the new Global Industrial Coatings Market study, Protective.Read more
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!Read more
We will be closed between Saturday 24th December 2016 and Monday 2nd January 2017.Read more
Notice of Management Buyout of PRA from Pera Technology SolutionsRead more
Welcome to our newest member - Olin Epoxy!Read more
PRA are pleased to welcome M&K Ghana to membership.Read more
PRA is delighted to welcome another new member to the PRA - Dupre MineralsRead more
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