PU-2 resins have good compatibility with many resins. It exhibits good compatibility with vinyl chloride/vinyl acetate copolymers, polyvinyl butyral, alkyd resins, nitrocellulose, and certain aldehyde ketone resins. In addition, it has excellent adhesion to substrates such as BOPP, PET, NYLON, etc., and has excellent composite strength, pigment wettability and printability.