Polyurethane coatings: a perfect product class for the design of modern automotive clearcoats

Abstract This paper gives a brief background of 2 K polyurethane coatings for automotive exterior application. Basic properties that make this class of raw materials such an important and successful one are described. Additionally, a helpful method for characterization of basic mechanical parameters is given and chemical strategies for improving the mechanical strength of this type of coating are reviewed. © 2018 Society of Chemical Industry