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 |
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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
Need more information?
At Toray our goal is your success. If you have any questions or would like to learn more, please contact us.
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Toray Advanced Composites USA
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