Dispex N40 Sodium salt of an acrylic polymer Ciba Colloidal stabilizers / Dispersing agents >> Sodium Polyacrylate ADHESIVE >> Water-based DISPEX N40 is derivative of a family of highly effective, low viscosity dispersing agents for water-borne coating systems. The product is especially suited for the dispersion of inorganic pigments. DISPEX N40 is a solution of a sodium salt of an acrylic polymer in water. DISPEX N40 preparation is ideal dispersing agents for a wide range of water-borne coatings. DISPEX N40 can be used as supplied. The neutralising alkali used in conjunction with the acrylic polymer can significantly impact the properties of the final coating. The sodium-based DISPEX N40 often contributes slightly negatively to the coating properties. DISPEX N40 is effective over a pH range 5-12 and up to temperatures in excess of 100°C. Compared with inorganic dispersing agents, e.g. polyphosphate products, the organic polymer based DISPEX N40 provides improved storage stability of both, the pigment dispersion and the formulated paint. There is little or no adverse reaction to high temperatures or pH changes as indicated in the graphs below, which are examples showing the accelerated effects. Solution of a sodium salt of an acrylic polymer in water. Used as a highly effective, low viscosity dispersing agents for water-borne systems. Contributes slightly negatively to the adhesive properties. Provides improved storage stability of both, the pigment dispersion and the formulated adhesive, and little or no adverse reaction to high temperatures or pH changes.