Alberdingk CUR 21 Polyester-polyurethane dispersion Alberdingk Boley Polyurethane (PU) - Polyurethane dispersions (PUDs) >> Polyester Other industry >> Leather Coating ALBERDINGK® CUR 21 is an aqueous dispersion of an aliphatic polyester-polyurethane without solvents and free isocyanate groups. For manufacturing we use renewable resources based on castoroil. It is used for leather equipment, textile impregnation and softfeeling-coatings. ALBERDINGK® CUR 21 is also suitable for 2-pack systems with a polyisocyanate crosslinking (e. g. Bayhydur 3100, Desmodur DA, Basonat 8878). An aqueous dispersion of an aliphatic polyester-polyurethane. Used for leather equipment, textile impregnation and softfeeling-coatings.