Solvay CYCOM® 977-3 Neat Epoxy Resin

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Solvay CYCOM® 977-3 Neat Epoxy Resin
Categories:	Polymer; Thermoset; Epoxy
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) Applications: Aircraft primary and secondary structure Applications where impact resistance is critical Applications where hot/wet performance is crucial Note 1: 5 Harness Satin (5HS) Standard Modulus Carbon Fiber [33 msi (228 GPa)] Note 2: Typical Unidirectional Tape Properties Intermediate Modulus Carbon Fiber [40 msi (276 GPa)] Information provided by Cytec, subsequently acquired by Solvay.
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Physical Properties	Metric	English	Comments

Density	1.29 g/cc	0.0466 lb/in³

Mechanical Properties	Metric	English	Comments
Flexural Strength	66.2 - 71.7 MPa @Temperature 121 °C	9600 - 10400 psi @Temperature 250 °F	wet
	117 - 172 MPa @Temperature 24.0 °C	17000 - 25000 psi @Temperature 75.2 °F
Flexural Modulus	0.300 - 4.50 GPa @Temperature 121 °C	43.5 - 653 ksi @Temperature 250 °F	wet
	3.73 - 3.87 GPa @Temperature 24.0 °C	541 - 561 ksi @Temperature 75.2 °F
Compressive Yield Strength	184 - 188 MPa @Temperature 24.0 °C	26700 - 27300 psi @Temperature 75.2 °F
Fracture Toughness	0.820 - 0.980 MPa-m½	0.746 - 0.892 ksi-in½	K_1C

Thermal Properties	Metric	English	Comments
Maximum Service Temperature, Air	132 °C	270 °F	wet
	177 °C	351 °F	dry
Glass Transition Temp, Tg	178 °C	352 °F	G' DMA at 5°C/min.
	189 °C	372 °F	G" DMA at 5°C/min.
	190 °C	374 °F	Tan Delta DMA at 5°C/min.

Processing Properties	Metric	English	Comments
Processing Temperature	177 °C	350 °F	Cure
Shelf Life	0.630 Month @Temperature 22.2 °C	0.630 Month @Temperature 72.0 °F
	12.0 Month @Temperature -17.8 °C	12.0 Month @Temperature 0.000 °F

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PCYTED091 / 180393

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