Environmental regulations and end-user demand have driven the paint and coating industry to focus on reducing volatile organic compound (VOC) content while maintaining excellent coating performance. Other major drivers include the need for improved cost and coating robustness and better aesthetics over the service life. Two component epoxy systems provide excellent adhesion and chemical resistance and have been widely used in floor coatings. Waterborne epoxy coatings have gained wide acceptance as environmentally friendly alternatives to solventbased and solvent-free epoxy systems due to their low VOC and potential to meet stringent emission requirements. This paper will highlight the development of a new waterborne epoxy curing agent that provides excellent fast cure speed even under adverse condition such as low temperature and high humidity, superior adhesion to substrate when used as a primer, particularly on damp concrete, and excellent aesthetics as a topcoat. The product enables coating formulators to design new floor systems consisting of a primer and topcoat applied on the same day, and that delivers walk-on readiness the next morning. The paper will discuss model formulations based on the new curing agent, typical properties, and applications.
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