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LECO for Empowering Results
Solvay CYCOM® 977-3 Epoxy - Unidirectional Carbon Fiber Tape
Categories: Polymer; Thermoset; Carbon Fiber/Thermoset Composite; Epoxy; Epoxy/Carbon Fiber Composite

Material Notes: CYCOM® 977-3 is a 350°F (177°C) curing resin. It is a toughened epoxy resin with 350°F (177°C) dry and 270°F (132°C) wet service capability. CYCOM 977-3 is formulated for autoclave or press molding and can be cured at 350°F (177°C) for six hours. Unidirectional tape and woven fabric impregnated with CYCOM 977-3 resin will retain tack for 21 days at 72°F (22°C). It has a long mechanical out life suitable for fabrication of large structures.

Features & Benefits:

  • 350°F (177°C) cure
  • Available on fabric and tape
  • 350°F (177°C) dry service temperature
  • 270°F (132°C) wet service temperature
  • Laminate and sandwich panel usage
  • Autoclave or press mold processing
  • Toughened epoxy using proprietary “cocontinuous”morphology
  • Impact resistance
  • Shelf life of 12 months at 0°F (-18°C), 21 days at 72°F (22°C)
  • Aircraft primary and secondary structure
  • Applications where impact resistance is critical
  • Applications where hot/wet performance is crucial
Mechanical property data for 977-3 epoxy Unidirectional Tape with IM7 12K Intermediate Modulus Carbon Fiber [40 msi (276 GPa)].

Information provided by Cytec, subsequently acquired by Solvay.

Available Properties
  • Tensile Strength, 0°
  • Elongation at Break, 0°
  • Tensile Modulus, 0°
  • Flexural Strength, 0°, wet
  • Flexural Strength, 0°
  • Flexural Modulus, 0°, wet
  • Flexural Modulus, 0°, Note 2
  • Compressive Strength, After 270 in-lb Impact
  • Compressive Strength, 0°, wet
  • Compressive Strength, RDS, 10°C/minute)
  • Compressive Modulus, 0°, wet
  • Compressive Modulus, 0°
  • Shear Strength, 0° Interlaminar, wet
  • Shear Strength, 0° Interlaminar
  • Maximum Service Temperature, Air, wet
  • Maximum Service Temperature, Air, dry
  • Glass Transition Temp, Tg, G'
  • Glass Transition Temp, Tg, G"
  • Glass Transition Temp, Tg, Tan Delta
  • Processing Temperature, Cure
  • Shelf Life
  • Shelf Life
Property Data

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Manufacturer Notes:
Solvay, former Rhodia Engineering Plastics

Category Notes

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