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

KUKDO SM-681 Epoxy Resin

KUKDO SM-681 Epoxy Resin is a high-performance bisphenol-A-based liquid epoxy resin from KUKDO’s SM series, offering excellent adhesion, chemical resistance and mechanical strength. Widely used in composites, electrical encapsulation and industrial coatings, it features low viscosity, good flowability and reliable curing compatibility with common hardeners.
  • kukdo sm 681 epoxy resin_b5fd5422
  • kukdo sm 681 epoxy resin_b5fd5422

Features Of KUKDO SM-681 Epoxy Resin

  1. Highly reactive bisphenol-A based liquid epoxy resin with low viscosity for excellent processability.

  2. Superior adhesion to metals, composites, and cured polymer substrates under ambient and elevated cure conditions.

  3. Excellent chemical resistance to alkalis, dilute acids, and common solvents after full crosslinking.

  4. Consistent batch-to-batch quality certified to ISO 9001 manufacturing standards.

  5. Low chloride content (< 500 ppm) ensuring compatibility in high-reliability electronic encapsulation applications.

Typical Applications Of KUKDO SM-681 Epoxy Resin

  1. Structural adhesives for automotive and aerospace bonding assemblies.

  2. Electrical encapsulants and potting compounds for PCBs and power modules.

  3. High-performance composite matrix resin for carbon fiber and glass fiber reinforcements.

  4. Protective coatings for industrial steel and concrete infrastructure.

  5. Formulation base for specialty casting resins used in tooling and mold making.

Specifications Of KUKDO SM-681 Epoxy Resin

Chemical TypeBisphenol-A epoxy resin
Product FormClear, low-viscosity liquid
AppearanceColorless to pale yellow, transparent
Epoxy Equivalent Weight (EEW)185–192 g/eq
Viscosity at 25°C12,000–15,000 cP
Chloride Content≤ 500 ppm
Softening PointNot applicable (liquid at room temperature)
Storage Stability12 months at < 25°C in sealed containers


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