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Product description

TC420 is a flow controlled cyanate ester prepreg, toughened to resist microcracking.

TC420 is specifically formulated for out of autoclave large structures for ultra high temperature conditions. It can act as a self-adhesive system, is easy to process and yields low void laminates with a flexible cure cycle under vacuum only pressure. TC420 is also autoclave processable.

Product benefits/features

  • Excellent thermal stability
  • Epoxy-like processing with Tg of BMI
  • Used on heatshields and supersonic leading edges

Market segments

  • Launch
  • Space & Satellite
  • Motorsport & Formula 1
  • Automotive
  • Aerostructures
  • Radome
  • Industrial


Product category Thermoset Prepreg
Processing Out of Autoclave / Vacuum bag
Press forming
Post curable
Resin type Cyanate Ester
Tg (Dry, onset) 348 °C / 658 °F
Cure temperature (Optimal) 177 °C / 350 °F
Cure temperature (Lowest)177 °C / 350 °F
Cure temperature (Highest)177 °C / 350 °F
Out life 21 days
Post curable

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