Innovative Water-based UV Resins for Exterior Applications
Laurie Morris, Alberdingk Boley, Inc.
Abstract: Waterborne (WB) UV chemistry has shown significant growth in interior industrial markets because the technology provides excellent performance, low solvent emissions and increased production efficiency. These same advantages can be beneficial for exterior applications including window and door frames, siding and other millwork. These market segments conventionally utilize acrylic emulsions and polyurethane dispersions because they have excellent gloss and color retention and demonstrate superior durability. In this study, polyurethane-acrylic resins with UV functionality have been evaluated according to the American Architectural Manufacturers Association (AAMA) and the Window and Door Manufacturers Association (WDMA) specifications. This paper will present data relating to features and performance advantages of WB UV coatings. The challenges of formulating pigmented coatings with WB UV will also be discussed.