Coatings are utilized in a wide variety of applications (floor, wall, roof, etc.) and on many different substrates (concrete, steel, drywall, etc) in commercial architectural settings, and performance requirements will obviously vary depending on the intended use and environment.
Product Number:
41214-820-SG
Author:
Sudhir Achar, Henry Eichman, Zhenwen Fu, Andy Hejl, Leo Procopio, Yong Zhang
Publication Date:
2014
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Coatings are utilized in a wide variety of applications (floor, wall, roof, etc.) and on many different substrates (concrete, steel, drywall, etc) in commercial architectural settings, and performance requirements will obviously vary depending on the intended use and environment. Waterborne and 100% solids coatings are often preferred for walls and floors of interior spaces due to their low odor and environmental profile, but the choice of specific coating chemistry will also rely on performance needs such as chemical and stain resistance, adhesion, resistance to abrasion and impact, and UV durability. For example, wall coatings in commercial environments, such as schools and hospitals, are often subjected to greater abuse (both physical and chemical) than coatings on a typical residential wall. More frequent cleaning and use of harsher cleaning agents and chemicals can lead to greater film damage, and call for wall coatings with higher resistance properties. Two-component coatings based on epoxy chemistry typically offer the best resistance to physical and chemical damage due to their crosslinked nature, but have some drawbacks such as poor resistance to damage from UV light. Some common systems used as wall and floor coatings in commercial architecture include 1) waterborne epoxy dispersions crosslinked with amine hardeners, 2) waterborne acrylic dispersions crosslinked with epoxy resins (acrylic/epoxy), and 3) 100% solids systems based on liquid epoxy resins crosslinked with amine hardeners. This paper will compare these currently used technologies with a newly developed, waterborne epoxy hybrid system that combines the best features of each, including the fast property development and ultimate resistance properties of epoxy/amine systems, and quick dry times and excellent UV durability of acrylic/epoxy coatings. Evaluation of the novel epoxy hybrid chemistry in the context of wall and floor coatings for commercial architecture will be described.
