Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

BASF Dispex Ultra FA 4420 Dispersant

BASF Dispex Ultra FA 4420 Dispersant is a high-performance, water-based polymeric dispersant from BASF’s Dispex Ultra series. It delivers exceptional pigment stabilization, rheology control, and gloss enhancement in architectural and industrial coatings—especially for challenging inorganic pigments and extenders—while enabling low-VOC, high-solids formulations with excellent storage stability and color strength.
  • basf dispex ultra fa 4420 dispersant_fd9e7662
  • basf dispex ultra fa 4420 dispersant_fd9e7662

Features Of BASF Dispex Ultra FA 4420 Dispersant

  1. High-efficiency polymeric dispersant for demanding aqueous pigment systems.

  2. Excellent stabilization of inorganic and organic pigments across broad pH ranges (pH 6–10).

  3. Low foaming profile, enabling robust performance in high-shear dispersion and industrial coating processes.

  4. Enables high pigment loading while maintaining low viscosity and superior color development.

  5. Compatible with a wide range of waterborne resins including acrylics, PUDs, and styrene-acrylic emulsions.

Typical Applications Of BASF Dispex Ultra FA 4420 Dispersant

  1. Architectural interior and exterior wall paints.

  2. Industrial maintenance coatings (e.g., protective primers and topcoats).

  3. Automotive refinish basecoats and clearcoats.

  4. Wood coatings for furniture and cabinetry.

  5. Printing inks for packaging and decorative applications.

Specifications Of BASF Dispex Ultra FA 4420 Dispersant

Chemical TypeAnionic polymeric dispersant (modified polycarboxylate)
Product FormAqueous solution
AppearanceClear to slightly hazy, light yellow liquid
pH (10% aqueous solution)7.0 – 8.5
Active Content40.0 ± 1.0 wt.%
Density (20 °C)1.08 – 1.12 g/cm³
Viscosity (25 °C, Brookfield RV, spindle #3, 20 rpm)200 – 600 mPa·s
Primary ApplicationsPigment dispersion in waterborne architectural, industrial, and automotive coatings


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