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

KUKDO SMB-405 Epoxy Resin

KUKDO SMB-405 Epoxy Resin is a high-performance liquid bisphenol-A epoxy resin from KUKDO’s SMB series, offering excellent adhesion, chemical resistance, and low viscosity for composites, coatings, and electrical encapsulation. Widely used in aerospace and electronics due to its superior mechanical strength and thermal stability.
  • kukdo smb 405 epoxy resin_dbdb7590
  • kukdo smb 405 epoxy resin_dbdb7590

Features Of KUKDO SMB-405 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 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 115–120°C after post-cure at 150°C.

Typical Applications Of KUKDO SMB-405 Epoxy Resin

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

  2. Structural bonding and composite matrix resin for wind turbine blade components.

  3. Insulating coatings and potting compounds for automotive power electronics modules.

  4. Core material in printed circuit board (PCB) laminates and prepreg systems.

  5. Repair and refurbishment resins for industrial machinery housings and marine equipment.

Specifications Of KUKDO SMB-405 Epoxy Resin

Chemical TypeBisphenol-A based liquid epoxy resin
Product FormClear, amber-colored low-viscosity liquid
AppearanceTransparent to slightly hazy, free from gels or sediment
Epoxy Equivalent Weight (EEW)185–192 g/eq
Viscosity (25°C)12,000–14,000 cP
Chloride Content≤ 750 ppm
Softening PointNot applicable (liquid at room temperature)
Storage Stability12 months at ≤ 25°C in sealed original container


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