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Product description

E731 is a toughened epoxy component prepreg designed to deliver enhanced resin clarity for cosmetic components within high performance automotive. The Toray E731 resin formulation ensures that components are free from white-spots and exhibit high clarity.

Product benefits/features

  • Enhanced resin clarity - “white-spot” free
  • Toughened system - good mechanical properties
  • Controlled tack allows easy re-positioning

Market segments

  • Sport & recreation
  • Motorsport & Formula 1
  • Automotive
  • Consumer electronics
  • Industrial


Product category Thermoset Prepreg
Processing Press forming
Resin type Epoxy
Tg (Dry, onset) 140 °C / 284 °F
Cure temperature (Optimal) 125 °C / 257 °F
Cure temperature (Lowest)100 °C / 212 °F
Cure temperature (Highest)125 °C / 257 °F
Out life 14 days

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