Craymul 3240 Acrylic polymer Atofina-Cray Valley Acrylic Resins Other industry >> Leather Coating Craymul 3240 is acrylic water-borne polymer. It possesses good scrub resistance, excellent for shoes and offers anionic/non-ionic stabilizing system. It is used in leather finishes, base coat, full grain. Acrylic water-borne polymer. Used in leather finishes, base coat. Offers anionic/non ionic stabilizing system. Possesses good scrub resistance.