Water-borne, field-applied floor coatings based on ultraviolet (UV)-cure polyurethane dispersions can deliver a combination of very low odor and VOCs, ease of use, rapid cure, and strong performance characteristics, according to a “white paper” from a group of Bayer MaterialScience LLC representatives.
The paper, Ultraviolet Polyurethane Dispersions for Site-applied Floor Coatings Provide an Eco-friendly Floor Coating Options, is available on the Durability + Design website. The authors are Ramesh Subramanian, Michael Dvorchak, Charles Gambino, and Bob Wade, Bayer MaterialScience LLC.
UV-cure polyurethane coatings are well known in the furniture market and the OEM flooring industry, where they offer productivity, chemical resistance, long-term durability, and low VOCs and low odor, the authors point out. They review R&D programs involving the combination of UV curing and polyurethane dispersions in the formulation and application of site-applied coatings for concrete, vinyl, and wood flooring.
The coatings were cured with the use of high-intensity UV-cure equipment, and different formulations were evaluated for resistance to various chemical agents, and for hardness and abrasion resistance.
The authors concluded that the UV-cure formulations produced high-performance coatings offering durability and gloss, with the performance confirmed in field trials.