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

Spredox D-331 Dispersant

Spredox D-331 Dispersant is a high-performance polymeric dispersant from Spredox’s D-series, designed for pigment stabilization in water-based coatings and inks. It offers excellent wetting, viscosity control, and long-term colloidal stability without compromising gloss or color strength. Compatible with organic pigments and titanium dioxide, it enables high solids loading and reduced grinding time.
  • spredox d 331 dispersant_21e3b1fc
  • spredox d 331 dispersant_21e3b1fc

Features Of Spredox D-331 Dispersant

  1. High-efficiency steric and electrostatic stabilization for pigment and filler particles in aqueous systems.

  2. Excellent compatibility with acrylic, styrene-acrylic, and vinyl acetate-based polymer dispersions.

  3. Low foaming profile, minimizing processing interruptions and improving coating homogeneity.

  4. Enhanced storage stability of concentrated color pastes and functional slurries up to 12 months at ambient conditions.

  5. pH-stable performance across broad range (pH 6.5–9.5), supporting formulation flexibility.

Typical Applications Of Spredox D-331 Dispersant

  1. Architectural waterborne paints and interior/exterior wall coatings.

  2. Industrial maintenance coatings for metal and concrete substrates.

  3. Water-based inkjet inks for decorative and industrial printing applications.

  4. Functional slurries in construction chemicals, including tile adhesives and self-leveling compounds.

  5. Specialty pigment concentrates for automotive refinish and OEM pretreatment systems.

Specifications Of Spredox D-331 Dispersant

Chemical TypeAnionic polymeric dispersant (modified polycarboxylate)
Product FormAqueous liquid solution
AppearancePale yellow to light amber, clear to slightly hazy liquid
Active Content30.0 ± 1.5 wt%
pH (10% aqueous solution)7.2–8.0
Density (20°C)1.08–1.12 g/cm³
Viscosity (25°C)200–500 mPa·s (Brookfield RV, spindle #3, 20 rpm)
Primary ApplicationsStabilization of inorganic pigments (TiO₂, iron oxides, carbon black) and fillers (CaCO₃, talc, clay) in waterborne systems


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