Allnex has introduced a pair of solvent-free, waterborne dispersions for use in two-part polyurethane coating systems. Macrynal VSM 2521w and VSM 6299w are designed to yield coatings with high gloss and excellent chemical and block resistance, according to the company. The dispersions can be hand-mixed when mechanical agitation is not available. Resulting coatings can be applied to wood surfaces, including furniture.