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TenCate EX-1515
Cyanate Ester

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Product description

TenCate’s EX-1515 cyanate ester resin system is unique in the industry in that it is able to achieve an extremely high level of cure conversion after a 250°F (121°C) cure. This level of conversion provides optimal mechanical properties, high radiation resistance, low moisture absorption/low outgassing while retaining unparalleled toughness, a low 244°F (118°C), stress-free temperature and long out time. The resin system excels in its ability to resist microcracking, even when subjected to thermal cycling and high levels of radiation exposure. EX-1515 also displays low dielectric/low loss values similar to other cyanate esters which allow its use in radome and antenna applications. TenCate’s EX-1515 can be post cured, free-standing, to increase its thermal performance for temperature critical structures.

Product benefits/features
  • 121°C/250°F curing with optional higher Tg post cure
  • Low moisture absorption, low microcracking
  • Low dielectric constant and dissipation factors
  • Low stress cure temperature with high level of cure
  • New users should also evaluate TC410.
  • EX-1515 also has a compatible resin film adhesive, EX-1516
Market segments
  • Radome
  • Space/Satellite
Product type Thermoset Prepreg
Resin type Cyanate Ester
Tg 121°C/249°F
Initial cure temp 121°C/250°F
Cure time 3 hours at 121°C/250°F, optional post cure of 2 hours at 177°C/350°F
Outtime 7 days
Post curable Yes
Vacuum processable No
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