Alberdingk U 325 Aliphatic polyester-polyurethane Alberdingk Boley Polyurethane (PU) - Polyurethane dispersions (PUDs) >> Polyester Other industry >> Leather Coating ALBERDINGK® U 325 is an aqueous, low viscous dispersion of an aliphatic polyester polyurethane without free isocyanate groups. It is used for high quality textile and leather coatings with high wet buckling resistance. To improve the blocking resistance of acrylic dispersions. Improvement in stone chipping resistance in metallic basecoats. An aqueous, low viscous dispersion of an aliphatic polyester polyurethane. Used for high quality textile and leather coatings. Provides high wet buckling resistance.