Bayhydrol XP 2542 Acrylic resin Bayer MaterialScience Acrylic Resins Coatings >> Waterborne water Bayhydrol XP 2542 is a hydroxy-functional acrylic resin dispersed in water with approx. 1% co-solvent. Bayhydrol XP 2542 can be used as a coreactant for Bayhydur water-dispersible polyisocyanates in the formulation of < 50 g/l VOC containing topcoats for concrete flooring. Coatings formulated with Bayhydrol XP 2542 have good gloss and –depending on the polyisocyanatechemical resistance. As with any product, use of Bayhydrol XP 2542 acrylic dispersion in a given application must be tested (including but not limited to field testing) in advance by the user to determine suitability. Hydroxy-functional acrylic resin. Used in topcoats for concrete flooring.