People are using handheld electronic devices such as mobile phones, MP3 music players, and laptop computers. Because their hands are relatively sticky and sometimes greasy, the surface paint layer of these devices will wear out over a long period of time. In order to prevent this phenomenon, Bayer MaterialScience has developed a new type of radiation-curable polyurethane dispersion, which is coated on the surface of these products, so that they can maintain their new appearance for a long time.

　　Dr. Jan Weikard, one of the developers of this product, introduced that Bayer has successfully developed Bayhydrol UV series products for the coating of wood and furniture. Because this material is water-based and does not contain solvents, it is conducive to environmental protection and recycling. It saves costs, so it is more and more popular in the wood and furniture fields, and its development is especially rapid. The radiation curing technology has enabled Bayer to replicate the success of Bayhydrol UV and bring a series of expanded new uses. Among them, the high-end application that has made breakthroughs is Bayhydrol UV XP 2689, which is the aforementioned handheld electronic device coating. Ultraviolet radiation, the molecular structure of the material becomes highly cross-linked, which can produce great hydrolysis resistance, and can also resist the corrosion of cosmetics." In addition, this new product can give a strong, scratch-resistant and tear-resistant The coating is painted again to remove the roughness and make the final surface extremely smooth.

　　Another Bayhydrol UV XP 2736 product is also superior in performance. As an adhesive for plastic films and fabrics, it can make the finished product have strong adhesion and mechanical resistance. When Bayhydrol UV XP 2736 is used with other UV-curable dispersions, it can also improve the ultimate elasticity and flexibility of the coating.