Urethane Grade Medium Reducer is made to be technically and economically suitable for the full range of recognized automotive refinish paint brands, and it is not limited to a company in particular. This includes the highest quality urethane base coats, clear coats, as well as all acrylic lacquers, acrylic and synthetic enamels and undercoats. Doesn’t separate the flakes. Full VOC compliant. 0 Virgin Solvent.