Two-component (2K) polyurethane (PU) coatings are widely used in automotive interior and electronic device applications because of their high durability and excellent tactual sense characteristics.
Various functions have been required in these coating applications. For example, the chemical resistance of coatings to cosmetics, sunscreens and repellents has gained special attention in recent years. It is well known that certain chemicals in additives such as UV absorbers affect the quality of PU coatings. Conventional 2K PU coatings based on acrylic-urethane resins are not always sufficient to prevent the swelling or peeling caused by the chemical attack.