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

Sanmu SM634H E-42H Bisphenol A Epoxy Resin

Sanmu SM634H E-42H is a high-purity Bisphenol A epoxy resin from Sanmu’s SM634 series, offering excellent adhesion, chemical resistance and low viscosity for composites, coatings and electronic encapsulation applications. It features balanced reactivity, superior mechanical strength and reliable thermal stability under demanding industrial conditions.
  • sanmu sm634h e 42h bisphenol a epoxy resin_c578e577
  • sanmu sm634h e 42h bisphenol a epoxy resin_c578e577

Features Of Sanmu SM634H E-42H Bisphenol A Epoxy Resin

  1. High purity bisphenol A-based epoxy resin with consistent molecular weight distribution.

  2. Excellent thermal stability and low ionic chloride content (<0.05%) for enhanced electrical insulation performance.

  3. Optimized viscosity (12,000–16,000 cP at 25°C) enabling easy processing in solvent-free and high-solids formulations.

  4. Superior adhesion to metals, glass, and composites after proper curing with standard amine or anhydride hardeners.

  5. Low color value (APHA ≤15) ensuring minimal yellowing in clear-coat and optical-grade applications.

Typical Applications Of Sanmu SM634H E-42H Bisphenol A Epoxy Resin

  1. Electrical encapsulation and potting compounds for transformers, sensors, and power modules.

  2. High-performance laminating resins for printed circuit board (PCB) prepregs and copper-clad laminates.

  3. Structural adhesive systems used in aerospace composite bonding and automotive lightweight assemblies.

  4. UV- and thermal-curable coatings for metal substrates requiring chemical resistance and gloss retention.

  5. Matrix resin for filament-wound pressure vessels and fiber-reinforced polymer (FRP) tanks.

Specifications Of Sanmu SM634H E-42H Bisphenol A Epoxy Resin

Chemical TypeBisphenol A diglycidyl ether (DGEBA) epoxy resin
Product FormClear, amber viscous liquid
AppearanceHomogeneous, transparent, slightly viscous liquid at 25°C
Epoxy Equivalent Weight (EEW)188–194 g/eq
Viscosity (25°C)12,000–16,000 cP
Chloride Content≤0.05 wt%
Color (APHA)≤15
Softening PointNot applicable (liquid at room temperature)


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