Introduction WQ-277 is a room-temperature self-crosslinking, film-forming styrene-acrylic copolymer emulsion specifically developed for waterborne overprint varnishes and printing inks. It shows excellent compatibility with widely used acrylic polymers currently available on the market. Furthermore, in flexographic and gravure inks, it provides favorable pigment wetting performance. Physical Property Appearance Translucent milky emulsion Solid content (%) 44 Viscosity at 25 ℃