Used as topcoat in label and packaging printing applications, Michem Flex R1930 improves adhesion of inks, including UV-cured inks, to printed labels and flexible packaging substrates. Chemical-resistant product, also suited for film converters or printers who produce packaging and labels for use in harsh environments, can be applied using gravure, flexo, and other coating methods. Effective at coat weight of 0.5 gsm dry, primer dries clear.