Product

E721-FR

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Product description

E721-FR is a 120°C (248°F) cure modified epoxy prepreg of medium viscosity. E721-FR offers excellent structural properties, flame retardancy and exceptional toughness allowing direct lamination to honeycomb without the use of a film adhesive.

E721-FR is designed for structural applications. If fire retardant properties are not required, refer to Toray E720.

Product benefits/features

  • Direct lamination to honeycomb without the use of resin film
  • Fire resistant under FAR 25.853 Appendix F material test criteria (ii)

Market segments

  • Sport & Recreation
  • Motorsport & Formula 1
  • Automotive
  • Energy
  • Medical
  • Consumer Electronics
  • Aircraft Interiors
  • Industrial

Details

Product category Thermoset Prepreg
Processing Out of Autoclave / Vacuum bag
Press forming
Autoclave
Resin type Epoxy
Tg (Dry, onset) 120 °C / 248 °F
Cure temperature (Optimal) 120 °C / 248 °F
Cure temperature (Lowest) 120 °C / 248 °F
Cure temperature (Highest) 120 °C / 248 °F
Out life 60 days

Need more information?

At Toray our goal is your success. If you have any questions or would like to learn more, please contact us. 

Toray Advanced Composites UK

Toray Advanced Composites UK
Send email +44 1773 530899

Need more information?

At Toray our goal is your success. If you have any questions or would like to learn more, please contact us. 

Toray Advanced Composites USA

Toray Advanced Composites USA
Send email +1 (408) 465 8500

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