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.
28 day total out time making it an ideal system for large structures
Low moisture uptake, high Tg retention
Space & Satellite
eVTOL / Urban Air Mobility
Product category - Thermoset Prepreg
Processing - Out of Autoclave / Vacuum bag
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