TC275-1E New

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Product description

TC275-1E is a dual cure toughened epoxy prepreg designed to facilitate composite part construction with low pressure or vacuum pressure cures. The resin system features a 21 day tack life and 28 day total out time to allow the construction of a thick or larger composite structure.

TC275-1E may be cured at a lower temperature of 135°C (275°F) or can be cured at 177°C (350°F) for higher temperature service. TC275-1E represents a long out time version of Toray’s popular TC275-1 resin system.

Product benefits/features

  • 28 day total out time making it an ideal system for large structures
  • OOA/VBO processable
  • Low moisture uptake, high Tg retention

Market segments

  • Launch
  • Space & Satellite
  • Aerostructures


Product category Thermoset Prepreg
Processing Out of Autoclave / Vacuum bag
Press forming
Post curable
Resin type Epoxy
Tg (Dry, onset) 168 °C / 334 °F
Cure temperature (Optimal) 135 °C / 275 °F
Cure temperature (Lowest)135 °C / 275 °F
Cure temperature (Highest)177 °C / 350 °F
Out life Up to 28 days
Post curable

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