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

Dow DEN 438 Epoxy Resin

DowDEN438EpoxyResinisahigh-performancebisphenol-A-basedliquidepoxyresinfromDow’sDENseries,offeringexcellentadhesion,chemicalresistance,andmechanicalstrength.Idealforcomposites,adhesives,andcoatings,itfeatureslowviscosity,goodcureprofileflexibility,andconsistentbatch-to-batchreliability.
  • dow den 438 epoxy resin_a27c7e9d
  • dow den 438 epoxy resin_a27c7e9d

Features Of Dow DEN 438 Epoxy Resin

  1. Highly reactive liquid epoxy resin with low viscosity for excellent processability and wetting.

  2. Superior thermal stability and chemical resistance after curing with appropriate hardeners.

  3. Consistent molecular weight distribution ensuring reproducible performance in formulation.

  4. Low chloride content supporting high electrical insulation properties in electronic applications.

  5. Compatible with a broad range of amine, anhydride, and phenolic curing agents.

Typical Applications Of Dow DEN 438 Epoxy Resin

  1. Electrical encapsulation and potting compounds for transformers and sensors.

  2. High-performance laminating resins for printed circuit board (PCB) prepregs.

  3. Structural adhesives requiring elevated temperature resistance and toughness.

  4. Composite matrix resins for aerospace and wind energy components.

  5. Coatings and linings for corrosion-resistant industrial equipment.

Specifications Of Dow DEN 438 Epoxy Resin

Chemical TypeDiglycidyl ether of bisphenol-A (DGEBA)
Product FormClear to pale yellow liquid
AppearanceTransparent, slightly viscous liquid at room temperature
Epoxy Equivalent Weight (EEW)185–192 g/eq
Viscosity at 25°C12–16 Pa·s (12,000–16,000 cP)
Chloride Content≤ 750 ppm
Softening PointNot applicable (liquid at 25°C)
Key FeaturesLow viscosity, high reactivity, low ionic impurities, excellent dielectric strength


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