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

GESR903 Epoxy Resin

GESR903 Epoxy Resin is a high-performance Bisphenol-A-based epoxy resin from GESR’s 900 series, offering excellent adhesion, chemical resistance and thermal stability. Widely used in composites, coatings and electrical encapsulation, it delivers low viscosity, superior mechanical strength and reliable curing behavior with standard amine or anhydride hardeners.
  • gesr903 epoxy resin_d8e3bd65
  • gesr903 epoxy resin_d8e3bd65

Features Of GESR903 Epoxy Resin

  1. High reactivity with amine and anhydride curing agents for rapid gelation and short cycle times.

  2. Excellent adhesion to metals, composites, and cured epoxy substrates without primer.

  3. Low viscosity (12,000–15,000 cP at 25°C) enabling easy processing, impregnation, and flow control.

  4. Superior chemical resistance to alkalis, solvents, and mild acids after full cure.

  5. Low chloride content (< 800 ppm), minimizing corrosion risk in electronic and aerospace applications.

Typical Applications Of GESR903 Epoxy Resin

  1. Structural adhesives for automotive bonding and lightweight composite assembly.

  2. Matrix resin for filament-wound pressure vessels and CFRP wind blade components.

  3. Encapsulants and potting compounds for high-reliability power electronics.

  4. Tooling resins for low-CTE, dimensionally stable molds and master models.

  5. Electrical laminates requiring high dielectric strength and tracking resistance.

Specifications Of GESR903 Epoxy Resin

Chemical TypeBisphenol-F based liquid epoxy resin
Product FormClear, amber-colored low-viscosity liquid
AppearanceTransparent, slightly viscous liquid at 25°C
Epoxy Equivalent Weight (EEW)185–195 g/eq
Viscosity (25°C)12,000–15,000 cP
Chloride Content< 800 ppm
Softening PointNot applicable (liquid at room temperature)
Storage Stability12 months at ≤25°C in sealed containers


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