Craymul 3221 Acrylic polymer Atofina-Cray Valley Acrylic Resins Other industry >> Leather Coating Craymul 3221 is acrylic water-borne polymer. It possesses compatibility with cationic finishing and offers anionic/non-ionic stabilizing system. It is used in leather finishes, base coat. Acrylic water-borne polymer. Used in leather finishes, base coat. Offers anionic/non ionic stabilizing system. Possesses compatibility with cationic finishing.