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Toray BTCy-2

Toray BTCy-2 is our lowest dielectric cyanate ester prepreg resin system. This resin system is valued in high-energy microwave Applicationss due to the low loss tangent. 177°C (350°F) Cure Cyanate Ester

Polymer Name: Cyanate Ester Resin

Functions: Prepreg

Processing Methods: Out of Autoclave Prepreg

Technical Data Sheet
  • TypeDocument Name
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Knowde Enhanced TDS

Identification & Functionality

Composite Materials Functions

Features & Benefits

Product Highlights
  • Low microcracking and outgassing
  • Toray’s lowest dielectric resin
  • Ideal for high-energy radome structure

Applications & Uses

Composites Processing Methods
Recommended Applications
  • Radome
  • Aircraft
  • Spacecraft
  • Ultra-low loss radomes and antennae
  • Low outgassing Applicationss
  • Low loss castings for horns and lenses
  • High performance electronic substrates

Properties

Physical Form
Typical Properties
ValueUnitsTest Method / Conditions
Dielectric Constant at 10 GHz2.7
GIC Value1.4inlb/in2
Loss Tangent at 10 GHz0.001
Moisture Absorption at 100°C (212°F) saturation0.6%
Thermal Properties
ValueUnitsTest Method / Conditions
Polymer Tg191 (375)°C (°F)

Technical Details & Test Data

Recommended Cure Cycle

Toray BTCy-2 - Recommended Cure Cycle

Storage & Handling

Shelf Life
  • Out Life: 14 days at 25°C (77°
  • Frozen Storage Life: 6 months at -18°C (< 0°F)

Out life is the maximum time allowed at room temperature before cure.