Bayhydrol XP 7110E Polyurethane Bayer MaterialScience Polyurethane (PU) - Polyurethane dispersions (PUDs) Coatings >> Waterborne An OH-functional Polyurethane Dispersion (PUD) dissolved in water/n-methyl-2-pyrrolidone. Bayhydrol XP-7110E dispersion is commonly used as the reaction partner for Bayhydur polyisocyanates in two-component waterborne polyurethane low VOC coatings. Coatings based on Bayhydrol XP-7110E and Bayhydur polyisocyanates possess high gloss, and good chemical and abrasion resistance. These coatings also have good film flexibility while maintaining a high degree of hardness. Polyurethane dispersion. Possesses high gloss, good chemical and abrasion resistance. Offers good film flexibility.