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

Sanmu SM634L E-42L Bisphenol A Epoxy Resin

Sanmu SM634L E-42L is a high-purity Bisphenol A epoxy resin from Sanmu’s SM634L series, offering excellent adhesion, chemical resistance and low viscosity for composites, coatings and electronic encapsulation. It features balanced reactivity, low chloride content and consistent batch-to-batch performance, ideal for demanding industrial applications requiring reliability and process efficiency.
  • sanmu sm634l e 42l bisphenol a epoxy resin_cfe92401
  • sanmu sm634l e 42l bisphenol a epoxy resin_cfe92401

Features Of Sanmu SM634L E-42L Bisphenol A Epoxy Resin

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

  2. Excellent thermal stability and low ionic impurity content for enhanced electrical insulation performance.

  3. Optimized viscosity (12,000–16,000 cP at 25°C) for improved processability in casting and encapsulation.

  4. Superior adhesion to metals, glass, and composite substrates after proper curing.

  5. Low chlorine content (< 800 ppm), meeting stringent requirements for electronic-grade applications.

Typical Applications Of Sanmu SM634L E-42L Bisphenol A Epoxy Resin

  1. Electrical insulating encapsulants for power modules and IGBTs.

  2. High-voltage potting compounds in transformers and bushings.

  3. Structural adhesives for aerospace composite bonding.

  4. Prepreg matrices in high-performance printed circuit boards (PCBs).

  5. Coating resins for corrosion-resistant industrial linings.

Specifications Of Sanmu SM634L E-42L Bisphenol A Epoxy Resin

Chemical TypeBisphenol A epoxy resin (liquid)
Product FormClear, amber-colored viscous liquid
AppearanceHomogeneous, transparent, free of gel particles or sediment
Epoxy Equivalent Weight (EEW)187–193 g/eq
Viscosity (25°C)12,000–16,000 cP
Chlorine Content≤ 800 ppm
Volatiles Content≤ 0.3 wt%
Softening PointNot applicable (liquid at room temperature)


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