Small particle size, hard acrylic-styrene polymer emulsion that facilitates the formulation of high-performance waterborne finishes for coating plastic substrates, such as those used for business machines and office equipment. Offered for use on the following plastics: Acrylonitrile/butadiene/styrene, polycarbonate, polyphenylene oxide, polyvinyl chloride, acrylic, polystyrene, high-impact polystyrene, polypropylene, and pre-treated thermoplastic polyolefin. Offers an excellent combination of application, durability, and appearance benefits that make it an excellent choice for demanding business and office applications.