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Current automotive coatings systems consist of several layers, such as an adhesion-promoting layer, primer, basecoat and clearcoat.

Today’s coatings market expects more from its white pigments than brightness and opacity. White pigments, such as titanium dioxide (TiO2), barium sulfate (BaSO4) and zinc sulphide, are just examples of many ingredients possible in a complex coatings formulation.

In Part 1 of this article series,1 we discussed a new class of reactive surfactants, both nonionic and anionic, for use in both conventional aqueous emulsion polymers and in UV-curable coatings that contain two polymerizable moieties.

The binders used in water-based paints are traditionally produced by emulsion polymerization.

The trade-off in the yellow and orange color space between the weatherability, heat stability and opacity of inorganic pigments versus the chromaticity, brightness and tint strength of organic colorants, in light of the decrease in use of pigments based on deprecated metals, has opened an opportunity for new colored pigment chemistries.

PPG Industries recently released its annual automotive color popularity and trend data.

Over the past several months the landscape at the federal level in Canada has been experiencing a quiet, but significant shift on the regulatory front.

First, it was adhesion to multiple substrates, then the requests were for better dirt pick-up resistance. Now, contractors are asking for – and receiving – an elastomeric roof coating that has the potential to resist hard rain much faster than previous technologies enabled.

Manufacturers in the coatings industry are responding to growing competitive pressure by re-examining every step in their process, searching for opportunities for improvement.

This article reports on the performance results of acrylated monomers and oligomers when subjected to typical end-use tests designed to measure the flexibility and adhesion characteristics of coatings.