Two-component polyurethane coatings have become the preferred technology for a range of application areas that demand the highest quality. A skilled formulator can employ a large variety of different raw materials to achieve properties such as hardness, toughness, flexibility, outdoor- and chemical resistance in combination with a superior appearance. As the coating process does not require high temperatures or special curing equipment (like ovens or irradiation lamps), this technology can be used in many applications including those with very large or temperature-sensitive substrates, for example, large vehicles, airplanes, plastics coatings or automotive refinish [1]. Polyisocyanate crosslinkers are crucial ...