Technical datasheet

Dispex® AA 4140

Supplied byBASF- Last Updated on Jun 14, 2026

Dispex® AA 4140 by BASF is a derivative of a family of highly effective, low-viscosity dispersing agent for water-based coating systems, particularly suitable for the dispersion of inorganic pigments and fillers.
  • Based on an organic polymer, it provides improved storage stability of both pigment dispersions and formulated paints compared with inorganic dispersing agents such as polyphosphate products.
  • It exhibits little or no adverse reaction to high temperatures or pH changes and remains effective over a pH range of 5–12 and at temperatures exceeding 100 °C.
  • Dispex® AA 4140 is used in architectural and industrial coatings.
  • The recommended dosage is 0.5-2% on total pigment weight.
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Coatings|
Waterborne Coatings

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Dispex® AA 4140 properties

Other properties

PropertiesValue & unitTest conditionTest method
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