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

Dow QS-44 Dispersant

Dow QS-44 Dispersant is a high-performance polymeric dispersant from Dow’s QS series, engineered to stabilize pigments and fillers in water-based coatings, inks, and construction chemicals. It delivers superior wetting, reduced viscosity, enhanced gloss, and long-term storage stability without compromising formulation efficiency or environmental compliance.
  • dow qs 44 dispersant_a4da3e45
  • dow qs 44 dispersant_a4da3e45

Features Of Dow QS-44 Dispersant

  1. High-efficiency pigment and filler stabilization in aqueous systems

  2. Excellent wetting performance for inorganic pigments and extenders

  3. Low foaming character, suitable for high-shear and recirculating processes

  4. Good compatibility with acrylic, styrene-acrylic, and vinyl acetate-based polymers

  5. pH-stable across broad range (pH 6–10), enabling formulation flexibility

Typical Applications Of Dow QS-44 Dispersant

  1. Architectural waterborne paints and coatings

  2. Industrial maintenance coatings

  3. Water-based printing inks

  4. Construction adhesives and cementitious tile grouts

  5. Specialty aqueous pigment concentrates

Specifications Of Dow QS-44 Dispersant

Chemical TypeAnionic polymeric dispersant (modified polycarboxylate)
Product FormAqueous solution (~35% active content)
AppearancePale yellow to light amber, clear to slightly hazy liquid
OdorFaint characteristic odor
pH (10% aqueous solution)7.0 – 8.5
Density (25°C)1.08 – 1.12 g/cm³
Viscosity (25°C, mPa·s)200 – 600 (Brookfield LV, spindle #3, 60 rpm)
Primary ApplicationsStabilization of TiO₂, calcium carbonate, clay, and iron oxides in waterborne systems


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