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

Mitsui EPOKEY 877 Epoxy Resin

Mitsui EPOKEY 877 is a high-purity, low-viscosity liquid epoxy resin from Mitsui Chemicals’ EPOKEY series, designed for advanced composites, electronic encapsulation, and high-performance adhesives requiring excellent thermal stability, low ionic impurities, and consistent reactivity.
  • mitsui epokey 877 epoxy resin_9aca794d
  • mitsui epokey 877 epoxy resin_9aca794d

Features Of Mitsui EPOKEY 877 Epoxy Resin

  1. High-purity bisphenol-A type liquid epoxy resin with low chlorine content.

  2. Excellent compatibility with standard amine and anhydride curing agents.

  3. Low viscosity for easy handling, mixing, and impregnation in composite processes.

  4. Superior electrical insulation properties and thermal stability after curing.

  5. Consistent batch-to-batch quality certified under ISO 9001 manufacturing standards.

Typical Applications Of Mitsui EPOKEY 877 Epoxy Resin

  1. Electrical encapsulation and potting of transformers, reactors, and insulators.

  2. Matrix resin for high-voltage composite insulators and bushings.

  3. Laminating resin for electrical-grade fiberglass (E-glass) prepregs and laminates.

  4. Binding agent in dry-type transformer windings and cast-resin coil systems.

  5. Base resin for specialty adhesives requiring high dielectric strength and moisture resistance.

Specifications Of Mitsui EPOKEY 877 Epoxy Resin

Chemical TypeBisphenol-A diglycidyl ether (DGEBA)
Product FormClear, low-viscosity liquid
AppearanceColorless to pale yellow, transparent
Epoxy Equivalent Weight (EEW)185–192 g/eq
Viscosity at 25°C12,000–16,000 mPa·s
Chlorine Content≤ 700 ppm
Softening Point12–16°C
Primary ApplicationsElectrical insulation, high-voltage composites, encapsulation


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