Acronal Optive 600 Acrylic ester copolymer BASF Acrylics/ Acrylates ADHESIVE Acronal Optive 600 (formerly Acronal NX 6618X) Aqueous acrylic ester copolymer dispersion, Solids content- 46.5%, viscosity @23C - 300cps; can be used in production of Exterior Insulation and Finish System cementous and non-cementous adhesive, base coat, and textured coatings. Aqueous acrylic ester copolymer dispersion. Used in production of exterior insulation and inish system cementous and non-cementous adhesive coatings.