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Evaluating The Effects of Powder Processing Conditions with Accelerated Corrosion Testing

Fluoroethylene vinyl ether (FEVE) resins were developed to overcome some of the challenges of traditional fluoropolymer resins exhibited in paint coatings. FEVE resins are synthesized from two monomers, fluoroethylene, and vinyl ether. When these monomers undergo radical polymerization, they produce amorphous A-B-type polymers shown below (Figure 1).

Product Number: 51323-19190-SG
Author: Connie Przeslawski
Publication Date: 2023
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Coating laboratories can spend immense time and resources screening various additives to remedy defects on cured surface coatings. However, in some cases, the powder coating processing from extrusion to spray application may be the cause of significant changes in defects for powder coating systems, resulting in early film failure. We compared various preparation methods to changes in surface appearance and physical performance for various exterior topcoat powder systems over metallic substrates. This study will utilize accelerated corrosion testing to evaluate how a powder system's preparation can affect the topcoat's overall performance in exterior weathering.

Coating laboratories can spend immense time and resources screening various additives to remedy defects on cured surface coatings. However, in some cases, the powder coating processing from extrusion to spray application may be the cause of significant changes in defects for powder coating systems, resulting in early film failure. We compared various preparation methods to changes in surface appearance and physical performance for various exterior topcoat powder systems over metallic substrates. This study will utilize accelerated corrosion testing to evaluate how a powder system's preparation can affect the topcoat's overall performance in exterior weathering.