Solvay CYCOM® 381 Epoxy Prepreg with S2 Uni-glass and 111FAW Epoxy

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Solvay CYCOM® 381 Epoxy Prepreg with S2 Uni-glass and 111FAW Epoxy
Categories:	Polymer; Thermoset; Epoxy
Material Notes:	CYCOM® 381 epoxy prepreg is an epoxy prepreg that offers a 250°F (121°C) curing system with high 180°F (82°C)/wet mechanical properties yet has the excellent fatigue and durability necessary for primary structure applications. Features & Benefits: Excellent 180°F (82°C)/wet properties Service temperature to 220°F (104°C) Three- to four-fold increases in fatigue life compared to perhaps all conventional 250°F (121°C) curing epoxy prepregs. This increase is the result of a 10 – 15% higher strain endurance limit. Inherent toughness provides good durability and compression after impact performance Low moisture absorption Excellent for vacuum pressure/oven processing Applications: Primary and secondary structural aircraft parts requiring 180°F (82°C)/wet retention of properties and/or excellent fatigue behavior Components that require good durability and/or low processing temperatures Helicopter rotor blades Rotating or cycled components Co-cured aluminum assemblies/parts Doublers Propellers Composite repair Information provided by Cytec, subsequently acquired by Solvay.
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Mechanical Properties	Original Value	Comments

Tensile Strength	6300 psi @Temperature 71.0 °C	90°, wet; SACMA SRM-4
	6400 psi @Temperature 82.0 °C	90°, dry; SACMA SRM-4
	8700 psi @Temperature 22.0 °C	90°, dry; SACMA SRM-4
	10300 psi @Temperature -54.0 °C	90°, dry; SACMA SRM-4
	115000 psi @Temperature 71.0 °C	0°, wet; SACMA SRM-4
	216000 psi @Temperature 104 °C	0°, dry; SACMA SRM-4
	224000 psi @Temperature 82.0 °C	0°, dry; SACMA SRM-4
	256000 psi @Temperature 22.0 °C	0°, dry; SACMA SRM-4
	266000 psi @Temperature -54.0 °C	0°, dry; SACMA SRM-4
Elongation at Break	1.69 % @Temperature 71.0 °C	0°, wet; SACMA SRM-4
	3.27 % @Temperature 104 °C	0°, dry; SACMA SRM-4
	3.34 % @Temperature 82.0 °C	0°, dry; SACMA SRM-4
	3.68 % @Temperature 22.0 °C	0°, dry; SACMA SRM-4
	3.8 % @Temperature -54.0 °C	0°, dry; SACMA SRM-4
Tensile Modulus	7.51 GPa @Temperature 71.0 °C	90°, wet; SACMA SRM-4
	10.8 GPa @Temperature 82.0 °C	90°, dry; SACMA SRM-4
	12.7 GPa @Temperature 22.0 °C	90°, dry; SACMA SRM-4
	14.9 GPa @Temperature -54.0 °C	90°, dry; SACMA SRM-4
	45.7 GPa @Temperature 104 °C	0°, dry; SACMA SRM-4
	46.3 GPa @Temperature 82.0 °C	0°, dry; SACMA SRM-4
	47.0 GPa @Temperature 71.0 °C	0°, wet; SACMA SRM-4
	47.9 GPa @Temperature 22.0 °C	0°, dry; SACMA SRM-4
	48.2 GPa @Temperature -54.0 °C	0°, dry; SACMA SRM-4
Flexural Strength	184000 psi @Temperature 104 °C	0°, dry, 3-point
	227000 psi @Temperature 22.0 °C	0°, dry, 3-point
Flexural Modulus	49.0 GPa @Temperature 22.0 °C	0°, dry, 3-point; ASTM D790
	53.0 GPa @Temperature 104 °C	0°, dry, 3-point; ASTM D790
Compressive Strength	889 MPa @Temperature 104 °C	0°, dry; SACMA SRM-1
	945 MPa @Temperature 71.0 °C	0°, wet; SACMA SRM-1
	1007 MPa @Temperature 71.0 °C	0°, wet; SACMA SRM-7
	1145 MPa @Temperature 82.0 °C	0°, dry; SACMA SRM-7
	1193 MPa @Temperature 82.0 °C	0°, dry; SACMA SRM-1
	1220 MPa @Temperature -54.0 °C	0°, dry; SACMA SRM-1
	1220 MPa @Temperature -54.0 °C	0°, dry; SACMA SRM-7
	1227 MPa @Temperature 22.0 °C	0°, dry; SACMA SRM-1
	1255 MPa @Temperature 22.0 °C	0°, dry; SACMA SRM-7
Compressive Modulus	46600 MPa @Temperature 82.0 °C	0°, dry; SACMA SRM-7
	47400 MPa @Temperature -54.0 °C	0°, dry; SACMA SRM-7
	47800 MPa @Temperature 71.0 °C	0°, wet; SACMA SRM-7
	47900 MPa @Temperature 71.0 °C	0°, wet; SACMA SRM-1
	47900 MPa @Temperature 82.0 °C	0°, dry; SACMA SRM-1
	48000 MPa @Temperature 22.0 °C	0°, dry; SACMA SRM-7
	48300 MPa @Temperature 22.0 °C	0°, dry; SACMA SRM-1
Poissons Ratio	0.53 @Temperature -54.0 °C	dry
	0.64 @Temperature 22.0 °C	dry
	0.65 @Temperature 82.0 °C	dry
	0.70 @Temperature 71.0 °C	wet
Shear Modulus	3.20 GPa @Temperature 71.0 °C	0° Short beam, SACMA SRM-8, wet
	3.70 GPa @Temperature 82.0 °C	0° Short beam, SACMA SRM-8, dry
	4.70 GPa @Temperature 22.0 °C	0° Short beam, SACMA SRM-8, dry
	5.60 GPa @Temperature -54.0 °C	0° Short beam, SACMA SRM-8, dry
Shear Strength	7800 psi	0° Short beam, Water, 160°F (71°C)/14 days; SACMA SRM-8
	11700 psi	0° Short beam, MEK, 75°F (24°C)/7 days; ASTM D740
	11800 psi	0° Short beam, Cleaning, Mil-C-87936, 75°F (24°C)/7 days; SACMA SRM-8
	12000 psi	0° Short beam, Deicer, Mil-A-8243, 32°F (0°C)/30 day; SACMA SRM-8
	12100 psi	0° Short beam, Fuel, Mil-T-5624, 75°F (24°C)/90 days; SACMA SRM-8
	12400 psi	0° Short beam, Hydraulic, Mil-H-83282, 160°F (71°C)/90 days; SACMA SRM-8
	12500 psi	0° Short beam; SACMA SRM-8
	12600 psi	0° Short beam, Hydraulic, Mil-H-5606, 160°F (71°C)/90 days; SACMA SRM-8
	21600 psi	0° Short Beam, Oil, Mil-L-23699, 160°F (71°C)/90 days; SACMA SRM-8
	21600 psi	0° Short Beam, Oil, Mil-L-7808, 160°F (71°C)/90 days; SACMA SRM-8
	7300 psi @Temperature 71.0 °C	0° Short beam, wet; SACMA SRM-8
	9500 psi @Temperature 82.0 °C	0° Short Beam, dry; SACMA SRM-8
	11300 psi @Temperature 71.0 °C	In-plane, wet; SACMA SRM-7
	12500 psi @Temperature 22.0 °C	0° Short Beam, dry; SACMA SRM-8
	14700 psi @Temperature 82.0 °C	In-plane, dry; SACMA SRM-7
	16100 psi @Temperature -54.0 °C	0° Short Beam, dry; SACMA SRM-8
	19600 psi @Temperature 22.0 °C	In-plane, dry; SACMA SRM-7
	25800 psi @Temperature -54.0 °C	In-plane, dry; SACMA SRM-7

Thermal Properties	Original Value	Comments
Maximum Service Temperature, Air	220 °F

Processing Properties	Original Value	Comments
Gel Time	5.00 - 8.00 min @Temperature 121 °C

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PCYTED078_4 / 192657

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