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

KUKDO SM-633 Epoxy Resin

KUKDO SM-633 Epoxy Resin is a high-performance liquid bisphenol-A type 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 reactivity with amines/anhydrides, and superior electrical insulation properties for demanding engineering applications.
  • kukdo sm 633 epoxy resin_bc141df7
  • kukdo sm 633 epoxy resin_bc141df7

Features Of KUKDO SM-633 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 aggressive surface priming.

  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 (>18 kV/mm) and low dissipation factor.

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

Typical Applications Of KUKDO SM-633 Epoxy Resin

  1. Electrical encapsulation of transformers, reactors, and high-voltage insulators.

  2. Structural composite matrix resin for wind turbine blades and aerospace interior components.

  3. Underfill and glob-top encapsulation in power semiconductor modules.

  4. High-performance potting compound for industrial sensors and automotive control units.

  5. Matrix binder in carbon fiber reinforced laminates for demanding mechanical applications.

Specifications Of KUKDO SM-633 Epoxy Resin

Chemical TypeBisphenol-A based liquid epoxy resin
Product FormClear, amber-colored viscous liquid
AppearanceTransparent, slightly yellow, homogeneous liquid
Epoxy Equivalent Weight (EEW)185–195 g/eq
Viscosity (25°C)12,000–14,000 cP
Chloride Content≤ 500 ppm
Volatiles Content≤ 0.3 wt%
Storage Stability12 months at ≤ 25°C in sealed original container


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