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

Hexion EPIKOTE 678 Epoxy Resin

Hexion EPIKOTE 678 is a low-viscosity, bisphenol-A-based liquid epoxy resin offering excellent adhesion, chemical resistance, and electrical insulation. Widely used in composites, coatings, and encapsulation, it cures with amines or anhydrides to deliver high mechanical strength and thermal stability. Ideal for aerospace, electronics, and industrial applications requiring precision performance.
  • hexion epikote 678 epoxy resin_a90eeb43
  • hexion epikote 678 epoxy resin_a90eeb43

Features Of Hexion EPIKOTE 678 Epoxy Resin

  1. Low-viscosity liquid epoxy resin enabling excellent wetting and ease of processing in composites and coatings.

  2. High purity with low chlorine content, supporting superior electrical insulation properties.

  3. Excellent compatibility with standard amine and anhydride curing agents for broad formulation flexibility.

  4. Good adhesion to metals, glass, and carbon fibers, enhancing structural integrity in laminates and adhesives.

  5. Consistent batch-to-batch performance meeting stringent quality control standards for industrial manufacturing.

Typical Applications Of Hexion EPIKOTE 678 Epoxy Resin

  1. Aerospace composite matrices for primary and secondary structural components.

  2. Electrical encapsulants and insulating varnishes for transformers and motors.

  3. High-performance adhesive systems for metal-to-metal and metal-to-composite bonding.

  4. Wind turbine blade resins requiring toughness, fatigue resistance, and processability.

  5. Precision casting and potting formulations for electronics and sensor protection.

Specifications Of Hexion EPIKOTE 678 Epoxy Resin

Chemical TypeBisphenol-A based diglycidyl ether epoxy resin
Product FormClear to pale yellow liquid
AppearanceTransparent, slightly viscous liquid at 25°C
Epoxy Equivalent Weight (EEW)183–192 g/eq
Viscosity at 25°C12–16 Pa·s (12,000–16,000 cP)
Chloride Content≤ 500 ppm
Volatiles Content≤ 0.3 wt%
Primary ApplicationsComposites, electrical insulation, adhesives, potting & encapsulation


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