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The Performance of Waterborne Acrylic Coatings in an Accelerated Testing Protocol

Traditionally, a zinc-rich primer, epoxy midcoat and polyurethane topcoat have been the standard 3-coat solvent borne system used for coating structural steel, such as in the maintenance of bridges. This study describes the performance of waterborne acrylic coating systems in an accelerated testing protocol including corrosion resistance and cyclic weathering. A comparison of systems based solely on waterborne acrylic coatings, as well as hybrid systems (e.g., zinc rich primer with waterborne topcoats), to the industry standard will be discussed.

Product Number: 41206-226-SG
Author: Colleen Campbell, Leo J. Procopio
Publication Date: 2006
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Traditionally, a zinc-rich primer, epoxy midcoat and polyurethane topcoat have been the standard 3-coat solvent borne system used for coating structural steel, such as in the maintenance of bridges. This study describes the performance of waterborne acrylic coating systems in an accelerated testing protocol including corrosion resistance and cyclic weathering. A comparison of systems based solely on waterborne acrylic coatings, as well as hybrid systems (e.g., zinc rich primer with waterborne topcoats), to the industry standard will be discussed.

Traditionally, a zinc-rich primer, epoxy midcoat and polyurethane topcoat have been the standard 3-coat solvent borne system used for coating structural steel, such as in the maintenance of bridges. This study describes the performance of waterborne acrylic coating systems in an accelerated testing protocol including corrosion resistance and cyclic weathering. A comparison of systems based solely on waterborne acrylic coatings, as well as hybrid systems (e.g., zinc rich primer with waterborne topcoats), to the industry standard will be discussed.

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