Dispex® CX 4240 is a derivative of a family of highly effective, low-viscosity dispersing agents for water-based coating systems, especially suitable for the dispersion of inorganic pigments.

Compared with other dispersing agents Dispex® CX 4240 allows formulations of high-gloss/low-pigment-volume-concentration coatings in addition to standard matt formulations.

Dispex® CX 4240 is part of a family of products based on an acrylic copolymer. The copolymer is manufactured to a relatively narrow molecular weight distribution, resulting in a consistent product quality with maximum effectiveness.

Application

Dispex® CX 4240 is an ideal dispersing agent for a wide range of water-based coatings. The special copolymer backbone is designed for complete compatibility with polypropylene and hexylene glycols used in high proportions in water-based high-gloss coatings to promote wet-edge time.

The use of Dispex® CX 4240 is especially recommended when high-gloss/low-pigment-volume-concentration coatings are formulated.

The neutralizing alkali used in conjunction with the acrylic polymer can significantly impact the properties of the final coating. Dispex® CX 4240 releases ammonia during the drying process and therefore has little impact on the resistances to water and alkali of the dry film.