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Product description

C740 is a 135°C (275°F) cure cyanate ester component prepreg. C740 is capable of withstanding very high temperatures and is inherently flame retardant. After a suitable postcure the glass transition temperature can be increased to as high as 325°C (617°F).

Product benefits/features

  • Excellent high temperature capabilities for pipework and ducting applications
  • Features long out life for larger parts

Market segments

  • Motorsport & Formula 1
  • Automotive
  • Industrial


Product category Thermoset Prepreg
Processing Out of Autoclave / Vacuum bag
Post curable
Resin type Cyanate Ester
Tg (Dry, onset) 325 °C / 617 °F
Cure temperature (Optimal) 135 °C / 275 °F
Cure temperature (Lowest)135 °C / 275 °F
Cure temperature (Highest)135 °C / 275 °F
Out life 30 days
Post curable

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