Application area: General industry

General facts

Epoxy, glass fabric reinforced

Shortening: EP

Structural formula: Thermosets based on condensation of epichlorohydrin and besphenol-A, crosslinked with diamines or other hardeners.

Color: Transparent, colorless

Coloring options: Good

Common uses: EP GC 203 is suitable for electrical applications, temperature class H (180 degrees C)


  • Excellent adhesion to other materials.
  • Well-balanced combination of electrical, mechanical and thermal properties.
  • Abrasion resistant.
  • Better resistance to solvents and bases than polyester.
  • Can be processed both with and without both heat and pressure (can be cast).
  • Normally rigid and hard material but also available as an elastomer (rubber).
  • Dimensionally stable.
  • No shrinkage.
  • Very low thermal expansion.


  • Poor resistance to alcohol and certain solvents
  • Curing should take place at elevated temperature to obtain the best possible chemical and mechanical properties.

Download documents

Material data sheet EP GC 203