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	Metric	English	Comments

Tensile Strength	43.4 MPa @Temperature 71.0 °C	6300 psi @Temperature 160 °F	90°, wet; SACMA SRM-4
	44.1 MPa @Temperature 82.0 °C	6400 psi @Temperature 180 °F	90°, dry; SACMA SRM-4
	60.0 MPa @Temperature 22.0 °C	8700 psi @Temperature 71.6 °F	90°, dry; SACMA SRM-4
	71.0 MPa @Temperature -54.0 °C	10300 psi @Temperature -65.2 °F	90°, dry; SACMA SRM-4
	793 MPa @Temperature 71.0 °C	115000 psi @Temperature 160 °F	0°, wet; SACMA SRM-4
	1490 MPa @Temperature 104 °C	216000 psi @Temperature 219 °F	0°, dry; SACMA SRM-4
	1540 MPa @Temperature 82.0 °C	224000 psi @Temperature 180 °F	0°, dry; SACMA SRM-4
	1770 MPa @Temperature 22.0 °C	256000 psi @Temperature 71.6 °F	0°, dry; SACMA SRM-4
	1830 MPa @Temperature -54.0 °C	266000 psi @Temperature -65.2 °F	0°, dry; SACMA SRM-4
Elongation at Break	1.69 % @Temperature 71.0 °C	1.69 % @Temperature 160 °F	0°, wet; SACMA SRM-4
	3.27 % @Temperature 104 °C	3.27 % @Temperature 219 °F	0°, dry; SACMA SRM-4
	3.34 % @Temperature 82.0 °C	3.34 % @Temperature 180 °F	0°, dry; SACMA SRM-4
	3.68 % @Temperature 22.0 °C	3.68 % @Temperature 71.6 °F	0°, dry; SACMA SRM-4
	3.8 % @Temperature -54.0 °C	3.8 % @Temperature -65.2 °F	0°, dry; SACMA SRM-4
Tensile Modulus	7.51 GPa @Temperature 71.0 °C	1090 ksi @Temperature 160 °F	90°, wet; SACMA SRM-4
	10.8 GPa @Temperature 82.0 °C	1570 ksi @Temperature 180 °F	90°, dry; SACMA SRM-4
	12.7 GPa @Temperature 22.0 °C	1840 ksi @Temperature 71.6 °F	90°, dry; SACMA SRM-4
	14.9 GPa @Temperature -54.0 °C	2160 ksi @Temperature -65.2 °F	90°, dry; SACMA SRM-4
	45.7 GPa @Temperature 104 °C	6630 ksi @Temperature 219 °F	0°, dry; SACMA SRM-4
	46.3 GPa @Temperature 82.0 °C	6720 ksi @Temperature 180 °F	0°, dry; SACMA SRM-4
	47.0 GPa @Temperature 71.0 °C	6820 ksi @Temperature 160 °F	0°, wet; SACMA SRM-4
	47.9 GPa @Temperature 22.0 °C	6950 ksi @Temperature 71.6 °F	0°, dry; SACMA SRM-4
	48.2 GPa @Temperature -54.0 °C	6990 ksi @Temperature -65.2 °F	0°, dry; SACMA SRM-4
Flexural Strength	1270 MPa @Temperature 104 °C	184000 psi @Temperature 219 °F	0°, dry, 3-point
	1570 MPa @Temperature 22.0 °C	227000 psi @Temperature 71.6 °F	0°, dry, 3-point
Flexural Modulus	49.0 GPa @Temperature 22.0 °C	7110 ksi @Temperature 71.6 °F	0°, dry, 3-point; ASTM D790
	53.0 GPa @Temperature 104 °C	7690 ksi @Temperature 219 °F	0°, dry, 3-point; ASTM D790
Compressive Strength	889 MPa @Temperature 104 °C	129000 psi @Temperature 219 °F	0°, dry; SACMA SRM-1
	945 MPa @Temperature 71.0 °C	137000 psi @Temperature 160 °F	0°, wet; SACMA SRM-1
	1007 MPa @Temperature 71.0 °C	146100 psi @Temperature 160 °F	0°, wet; SACMA SRM-7
	1145 MPa @Temperature 82.0 °C	166100 psi @Temperature 180 °F	0°, dry; SACMA SRM-7
	1193 MPa @Temperature 82.0 °C	173000 psi @Temperature 180 °F	0°, dry; SACMA SRM-1
	1220 MPa @Temperature -54.0 °C	177000 psi @Temperature -65.2 °F	0°, dry; SACMA SRM-1
	1220 MPa @Temperature -54.0 °C	177000 psi @Temperature -65.2 °F	0°, dry; SACMA SRM-7
	1227 MPa @Temperature 22.0 °C	178000 psi @Temperature 71.6 °F	0°, dry; SACMA SRM-1
	1255 MPa @Temperature 22.0 °C	182000 psi @Temperature 71.6 °F	0°, dry; SACMA SRM-7
Compressive Modulus	46.6 GPa @Temperature 82.0 °C	6760 ksi @Temperature 180 °F	0°, dry; SACMA SRM-7
	47.4 GPa @Temperature -54.0 °C	6870 ksi @Temperature -65.2 °F	0°, dry; SACMA SRM-7
	47.8 GPa @Temperature 71.0 °C	6930 ksi @Temperature 160 °F	0°, wet; SACMA SRM-7
	47.9 GPa @Temperature 71.0 °C	6950 ksi @Temperature 160 °F	0°, wet; SACMA SRM-1
	47.9 GPa @Temperature 82.0 °C	6950 ksi @Temperature 180 °F	0°, dry; SACMA SRM-1
	48.0 GPa @Temperature 22.0 °C	6960 ksi @Temperature 71.6 °F	0°, dry; SACMA SRM-7
	48.3 GPa @Temperature 22.0 °C	7010 ksi @Temperature 71.6 °F	0°, dry; SACMA SRM-1
Poissons Ratio	0.53 @Temperature -54.0 °C	0.53 @Temperature -65.2 °F	dry
	0.64 @Temperature 22.0 °C	0.64 @Temperature 71.6 °F	dry
	0.65 @Temperature 82.0 °C	0.65 @Temperature 180 °F	dry
	0.70 @Temperature 71.0 °C	0.70 @Temperature 160 °F	wet
Shear Modulus	3.20 GPa @Temperature 71.0 °C	464 ksi @Temperature 160 °F	0° Short beam, SACMA SRM-8, wet
	3.70 GPa @Temperature 82.0 °C	537 ksi @Temperature 180 °F	0° Short beam, SACMA SRM-8, dry
	4.70 GPa @Temperature 22.0 °C	682 ksi @Temperature 71.6 °F	0° Short beam, SACMA SRM-8, dry
	5.60 GPa @Temperature -54.0 °C	812 ksi @Temperature -65.2 °F	0° Short beam, SACMA SRM-8, dry
Shear Strength	53.8 MPa	7800 psi	0° Short beam, Water, 160°F (71°C)/14 days; SACMA SRM-8
	80.7 MPa	11700 psi	0° Short beam, MEK, 75°F (24°C)/7 days; ASTM D740
	81.4 MPa	11800 psi	0° Short beam, Cleaning, Mil-C-87936, 75°F (24°C)/7 days; SACMA SRM-8
	82.7 MPa	12000 psi	0° Short beam, Deicer, Mil-A-8243, 32°F (0°C)/30 day; SACMA SRM-8
	83.4 MPa	12100 psi	0° Short beam, Fuel, Mil-T-5624, 75°F (24°C)/90 days; SACMA SRM-8
	85.5 MPa	12400 psi	0° Short beam, Hydraulic, Mil-H-83282, 160°F (71°C)/90 days; SACMA SRM-8
	86.2 MPa	12500 psi	0° Short beam; SACMA SRM-8
	86.9 MPa	12600 psi	0° Short beam, Hydraulic, Mil-H-5606, 160°F (71°C)/90 days; SACMA SRM-8
	149 MPa	21600 psi	0° Short Beam, Oil, Mil-L-23699, 160°F (71°C)/90 days; SACMA SRM-8
	149 MPa	21600 psi	0° Short Beam, Oil, Mil-L-7808, 160°F (71°C)/90 days; SACMA SRM-8
	50.3 MPa @Temperature 71.0 °C	7300 psi @Temperature 160 °F	0° Short beam, wet; SACMA SRM-8
	65.5 MPa @Temperature 82.0 °C	9500 psi @Temperature 180 °F	0° Short Beam, dry; SACMA SRM-8
	77.9 MPa @Temperature 71.0 °C	11300 psi @Temperature 160 °F	In-plane, wet; SACMA SRM-7
	86.2 MPa @Temperature 22.0 °C	12500 psi @Temperature 71.6 °F	0° Short Beam, dry; SACMA SRM-8
	101 MPa @Temperature 82.0 °C	14700 psi @Temperature 180 °F	In-plane, dry; SACMA SRM-7
	111 MPa @Temperature -54.0 °C	16100 psi @Temperature -65.2 °F	0° Short Beam, dry; SACMA SRM-8
	135 MPa @Temperature 22.0 °C	19600 psi @Temperature 71.6 °F	In-plane, dry; SACMA SRM-7
	178 MPa @Temperature -54.0 °C	25800 psi @Temperature -65.2 °F	In-plane, dry; SACMA SRM-7

Thermal Properties	Metric	English	Comments
Maximum Service Temperature, Air	104 °C	220 °F

Processing Properties	Metric	English	Comments
Gel Time	5.00 - 8.00 min @Temperature 121 °C	5.00 - 8.00 min @Temperature 250 °F

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PCYTED078_4 / 192657

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