Alberdingk U 7641 Aliphatic polyester-polyurethane Alberdingk Boley Polyurethane (PU) - Polyurethane dispersions (PUDs) >> Polyester Coatings Metal >> Primer Other industry >> Leather Coating water Miscible in water ALBERDINGK® U 7641 is an aqueous dispersion of an aliphatic polyester-polyurethane without free isocyanate groups. For high flexible permanent tacky adhesives. As primer with good adhesion on leather, textile and plastic as well as a combination dispersion for adhesive acrylic dispersions. Aqueous dispersion of an aliphatic polyester-polyurethane without free isocyanate groups. Used as a primer with good adhesion on leather, textile and plastic.