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

KUKDO E-39D Epoxy Resin

KUKDO E-39D is a high-performance bisphenol-A epoxy resin from Kukdo Chemical’s E-series, offering excellent adhesion, chemical resistance and thermal stability. Widely used in composites, electrical encapsulation and industrial coatings, it features low viscosity and superior mechanical properties after curing with suitable hardeners.
  • kukdo e 39d epoxy resin_f625cb47
  • kukdo e 39d epoxy resin_f625cb47

Features Of KUKDO E-39D Epoxy Resin

  1. High reactivity with standard amine and anhydride curing agents for rapid gelation and short cycle times.

  2. Excellent adhesion to metals, composites, and treated plastics without requiring primers.

  3. Low viscosity (12,000–14,000 cP at 25°C) enabling easy processing via casting, impregnation, and filament winding.

  4. Superior electrical insulation properties with high dielectric strength and volume resistivity.

  5. Good thermal stability with glass transition temperature (Tg) of 125–135°C after full cure with DDS hardener.

Typical Applications Of KUKDO E-39D Epoxy Resin

  1. Electrical insulation systems for medium- and high-voltage transformers and reactors.

  2. Encapsulation and potting of power electronics, including IGBT modules and EV inverters.

  3. Structural laminating resin for fiber-reinforced polymer (FRP) components in energy infrastructure.

  4. Core material in vacuum-pressure impregnation (VPI) processes for rotating machine windings.

  5. Matrix resin for high-performance composite tooling and aerospace-grade mandrels.

Specifications Of KUKDO E-39D Epoxy Resin

Chemical TypeBisphenol-F based liquid epoxy resin
Product FormClear to pale yellow viscous liquid
AppearanceHomogeneous, transparent, free of sediment or haze
Epoxy Equivalent Weight (EEW)185–195 g/eq
Viscosity (25°C)12,000–14,000 cP
Chloride Content≤ 800 ppm
Volatiles Content≤ 0.3 wt%
Storage Stability12 months at ≤ 25°C in unopened original container


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