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

Dow DER 909G Waterborne Epoxy Resin

Dow DER 909G is a waterborne epoxy resin from Dow’s DER™ series, offering low VOC, excellent adhesion, and stable dispersion in water. Ideal for eco-friendly coatings, primers, and industrial maintenance applications requiring fast cure, corrosion resistance, and compatibility with amine hardeners. Widely used in metal protection and sustainable construction systems.
  • dow der 909g waterborne epoxy resin_b64c0031
  • dow der 909g waterborne epoxy resin_b64c0031

Features Of Dow DER 909G Waterborne Epoxy Resin

  1. Low-VOC, water-based formulation compliant with stringent environmental regulations including EPA and EU REACH.

  2. Excellent adhesion to metals, concrete, and primed substrates without requiring solvent-based primers.

  3. Good pot life stability when mixed with compatible amine hardeners—enabling consistent application in industrial coating lines.

  4. Enhanced film flexibility and impact resistance compared to conventional solvent-borne epoxy systems.

  5. Reduced flammability hazard during storage, handling, and application due to aqueous dispersion nature.

Typical Applications Of Dow DER 909G Waterborne Epoxy Resin

  1. Industrial maintenance coatings for steel structures and infrastructure.

  2. Waterborne primer for automotive OEM and aftermarket metal finishing.

  3. High-performance floor coatings in food processing, pharmaceutical, and cleanroom facilities.

  4. Corrosion-resistant linings for water storage tanks and piping systems.

  5. Base resin for high-solids, low-emission protective coatings used in marine and offshore applications.

Specifications Of Dow DER 909G Waterborne Epoxy Resin

Chemical TypeBisphenol-A based waterborne epoxy dispersion
Product FormAqueous dispersion (non-ionic stabilized)
AppearanceOpaque white to off-white liquid
Solids Content (wt%)50–53%
pH (at 25°C)7.0–8.5
Viscosity (mPa·s, Brookfield, #2 spindle, 20 rpm, 25°C)1,200–2,500
Density (g/cm³, 25°C)1.02–1.05
Free Bisphenol-A (ppm)<10


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