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

Mitsui Epokey 820-40CX Modified Epoxy Resin

Mitsui Epokey 820-40CX is a modified epoxy resin from Mitsui Chemicals’ Epokey series offering low viscosity high reactivity and excellent adhesion for advanced composites and electronic encapsulation applications.
  • mitsui epokey 820 40cx modified epoxy resin_0e817cfc
  • mitsui epokey 820 40cx modified epoxy resin_0e817cfc

Features Of Mitsui Epokey 820-40CX Modified Epoxy Resin

  1. Highly flexible and impact-resistant due to proprietary polyether-modified backbone.

  2. Excellent adhesion to low-surface-energy substrates including polyolefins and treated metals.

  3. Reduced viscosity versus standard bisphenol-A epoxies, enabling easier processing and improved filler wetting.

  4. Good chemical resistance to alcohols, weak acids, and alkaline cleaners after full cure.

  5. Compatible with conventional amine and anhydride curing agents for tailored thermal and mechanical profiles.

Typical Applications Of Mitsui Epokey 820-40CX Modified Epoxy Resin

  1. Structural adhesives for automotive bonding (e.g., metal-to-composite, battery module assembly).

  2. Encapsulants and potting compounds for electronics requiring thermal cycling durability.

  3. High-performance coatings for industrial flooring and corrosion-resistant linings.

  4. Composite matrix resins in wind turbine blade root joints and aerospace secondary structures.

Specifications Of Mitsui Epokey 820-40CX Modified Epoxy Resin

Chemical TypePolyether-modified liquid epoxy resin
Product FormClear to pale yellow viscous liquid
AppearanceHomogeneous, slightly hazy liquid at room temperature
Epoxy Equivalent Weight (EEW)390–410 g/eq
Viscosity (25°C)8,000–12,000 mPa·s
Density (25°C)1.12–1.15 g/cm³
Primary ApplicationsAdhesives, encapsulants, coatings, composite matrices
Key FeaturesFlexibility, adhesion, processability, chemical resistance


Get in Touch with ERICW
Let competitive chemical materials go global.

Your Name *

Your Email *

Your Phone

Country

Your Message *