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

Evonik Surfynol DF-70 Surfactant

Evonik Surfynol DF-70 is a high-performance defoaming surfactant from the Surfynol series, designed for water-based coatings and inks. It combines rapid air release with excellent substrate wetting and foam control. This low-foam, nonionic acetylenic glycol derivative ensures superior leveling and compatibility across formulations while maintaining low VOC and high efficiency.
  • evonik surfynol df 70 surfactant_cbbbba25
  • evonik surfynol df 70 surfactant_cbbbba25

Features Of Evonik Surfynol DF-70 Surfactant

  1. Highly effective dynamic surface tension reducer for rapid substrate wetting and leveling.

  2. Low foaming profile suitable for high-shear industrial processes and automated coating lines.

  3. Excellent compatibility with waterborne acrylics, polyurethanes, and epoxy dispersions.

  4. Non-ionic, APEO-free formulation meeting stringent environmental and regulatory requirements.

  5. Stable performance across broad pH range (pH 4–12) and in the presence of electrolytes.

Typical Applications Of Evonik Surfynol DF-70 Surfactant

  1. Waterborne architectural coatings and industrial maintenance paints.

  2. Automotive OEM and refinish clearcoats and basecoats.

  3. Wood coatings including stains, sealers, and UV-curable topcoats.

  4. Inkjet inks for industrial digital printing on porous and non-porous substrates.

  5. Adhesives and sealants requiring enhanced substrate adhesion and flow control.

Specifications Of Evonik Surfynol DF-70 Surfactant

Chemical TypeAcetylenic diol-based non-ionic surfactant
Product FormLiquid
AppearancePale yellow to amber clear liquid
Active ContentApprox. 70 wt% in propylene glycol monomethyl ether (PM) and water
pH (1% aqueous solution)6.0–8.0
Density (20 °C)1.02–1.05 g/cm³
SolubilityCompletely miscible with water and common organic solvents
Storage StabilityStable for ≥12 months at 5–30 °C in sealed container


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