Alberdingk U 420 VP Aliphatic polyester-polyurethane Alberdingk Boley Polyurethane (PU) - Polyurethane dispersions (PUDs) >> Polyester Other industry >> Leather Coating ALBERDINGK® U 420 VP is an aqueous, low viscous dispersion of an aliphatic polyester polyurethane without free isocyanate groups. It is used in high quality coatings for the leather- and textile industry. The film has a very good resistance against water-storage. An aqueous, low viscous dispersion of an aliphatic polyester polyurethane. Used in coatings for the leather and textile industry. Possesses very good resistance against water-storage.