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

Evonik BREAK-THRU AF9903 Dispersant

Evonik BREAK-THRU® AF 9903 is a high-performance silicone-based wetting and dispersing additive from the BREAK-THRU® AF series. Designed for solventborne and waterborne coatings, it enhances pigment deagglomeration, improves gloss and transparency, and delivers excellent substrate wetting—especially on low-surface-energy surfaces.
  • evonik break thru af9903 dispersant_e411a1d2
  • evonik break thru af9903 dispersant_e411a1d2

Features Of Evonik BREAK-THRU AF9903 Dispersant

  1. High-efficiency wetting and dispersion of inorganic pigments and fillers in aqueous systems.

  2. Excellent stabilization against re-agglomeration and sedimentation over extended storage periods.

  3. Low-foaming formulation compatible with a broad range of water-based coatings and inks.

  4. Enables high pigment loading while maintaining low viscosity and good flow behavior.

  5. Non-ionic, APEO-free chemistry supporting sustainable product development and regulatory compliance.

Typical Applications Of Evonik BREAK-THRU AF9903 Dispersant

  1. Architectural interior and exterior waterborne paints.

  2. Industrial maintenance coatings for metal and concrete substrates.

  3. Water-based inkjet inks for packaging and decorative printing.

  4. Waterborne wood stains and clear finishes.

  5. Construction adhesives and cementitious tile grouts requiring stable pigment dispersion.

Specifications Of Evonik BREAK-THRU AF9903 Dispersant

Chemical TypeNon-ionic polymeric dispersant
Product FormLiquid, ready-to-use aqueous solution
AppearancePale yellow to light amber, clear to slightly hazy liquid
pH (1% aqueous solution, 20 °C)6.0 – 7.5
Active Content (wt %)35 – 40
Density (20 °C, g/cm³)1.02 – 1.06
SolubilityCompletely miscible with water and common co-solvents (e.g., glycols, ethanol)
Storage Stability≥ 12 months in original sealed container at 5–30 °C


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