Solvay CYCOM® 381 Epoxy Prepreg with E-glass Fabric and 300FAW Epoxy

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Solvay CYCOM® 381 Epoxy Prepreg with E-glass Fabric and 300FAW 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	83.4 MPa @Temperature 82.0 °C	12100 psi @Temperature 180 °F	Warp, wet; SACMA SRM-4
	232 MPa @Temperature 104 °C	33700 psi @Temperature 219 °F	Fill, dry; SACMA SRM-4
	261 MPa @Temperature 104 °C	37900 psi @Temperature 219 °F	Warp, wet; SACMA SRM-4
	268 MPa @Temperature 82.0 °C	38800 psi @Temperature 180 °F	Fill, wet; SACMA SRM-4
	385 MPa @Temperature 104 °C	55900 psi @Temperature 219 °F	Warp, dry; SACMA SRM-4
	457 MPa @Temperature 22.0 °C	66300 psi @Temperature 71.6 °F	Fill, ambient; SACMA SRM-4
	472 MPa @Temperature 22.0 °C	68500 psi @Temperature 71.6 °F	Warp, ambient; SACMA SRM-4
	538 MPa @Temperature -54.0 °C	78000 psi @Temperature -65.2 °F	Fill, dry; SACMA SRM-4
	636 MPa @Temperature -54.0 °C	92200 psi @Temperature -65.2 °F	Warp, dry; SACMA SRM-4
Elongation at Break	1.52 % @Temperature 104 °C	1.52 % @Temperature 219 °F	Warp; SACMA SRM-4
	1.55 % @Temperature -54.0 °C	1.55 % @Temperature -65.2 °F	Warp; SACMA SRM-4
Tensile Modulus	21.6 GPa @Temperature 104 °C	3130 ksi @Temperature 219 °F	Fill, dry; SACMA SRM-4
	21.9 GPa @Temperature 104 °C	3180 ksi @Temperature 219 °F	Warp, wet; SACMA SRM-4
	23.6 GPa @Temperature 82.0 °C	3420 ksi @Temperature 180 °F	Fill, wet; SACMA SRM-4
	25.3 GPa @Temperature 104 °C	3670 ksi @Temperature 219 °F	Warp, dry; SACMA SRM-4
	26.3 GPa @Temperature 22.0 °C	3810 ksi @Temperature 71.6 °F	Fill, ambient; SACMA SRM-4
	26.4 GPa @Temperature 82.0 °C	3830 ksi @Temperature 180 °F	Warp, wet; SACMA SRM-4
	27.0 GPa @Temperature 22.0 °C	3920 ksi @Temperature 71.6 °F	Warp, ambient; SACMA SRM-4
	27.0 GPa @Temperature -54.0 °C	3920 ksi @Temperature -65.2 °F	Fill, dry; SACMA SRM-4
	28.1 GPa @Temperature -54.0 °C	4080 ksi @Temperature -65.2 °F	Warp, dry; SACMA SRM-4
Compressive Strength	166 MPa @Temperature 104 °C	24100 psi @Temperature 219 °F	Fill, dry; SACMA SRM-1
	197 MPa @Temperature 104 °C	28600 psi @Temperature 219 °F	Warp, wet; SACMA SRM-1
	260 MPa @Temperature 82.0 °C	37700 psi @Temperature 180 °F	Fill, wet; SACMA SRM-1
	312 MPa @Temperature 82.0 °C	45300 psi @Temperature 180 °F	Warp, wet; SACMA SRM-1
	483 MPa @Temperature 22.0 °C	70100 psi @Temperature 71.6 °F	Fill, ambient; SACMA SRM-1
	517 MPa @Temperature 104 °C	75000 psi @Temperature 219 °F	Warp, dry; SACMA SRM-1
	563 MPa @Temperature -54.0 °C	81700 psi @Temperature -65.2 °F	Fill, dry; SACMA SRM-1
	629 MPa @Temperature 22.0 °C	91200 psi @Temperature 71.6 °F	Warp, ambient; SACMA SRM-1
	786 MPa @Temperature -54.0 °C	114000 psi @Temperature -65.2 °F	Warp, dry; SACMA SRM-1
Compressive Modulus	25.0 GPa @Temperature 82.0 °C	3630 ksi @Temperature 180 °F	Fill, wet; SACMA SRM-1
	26.6 GPa @Temperature 82.0 °C	3860 ksi @Temperature 180 °F	Fill, wet; SACMA SRM-1
	27.7 GPa @Temperature 82.0 °C	4020 ksi @Temperature 180 °F	Warp, wet; SACMA SRM-1
	28.0 GPa @Temperature 82.0 °C	4060 ksi @Temperature 180 °F	Warp, wet; SACMA SRM-1
	28.0 GPa @Temperature 22.0 °C	4060 ksi @Temperature 71.6 °F	Fill, ambient; SACMA SRM-1
	29.0 GPa @Temperature 22.0 °C	4210 ksi @Temperature 71.6 °F	Warp, ambient; SACMA SRM-1
	29.0 GPa @Temperature -54.0 °C	4210 ksi @Temperature -65.2 °F	Fill, dry; SACMA SRM-1
	29.4 GPa @Temperature 22.0 °C	4260 ksi @Temperature 71.6 °F	Fill, ambient; SACMA SRM-1
	29.7 GPa @Temperature 22.0 °C	4310 ksi @Temperature 71.6 °F	Warp, ambient; SACMA SRM-1
	30.0 GPa @Temperature -54.0 °C	4350 ksi @Temperature -65.2 °F	Warp, dry; SACMA SRM-1
	30.3 GPa @Temperature -54.0 °C	4390 ksi @Temperature -65.2 °F	Warp, dry; SACMA SRM-1
	30.3 GPa @Temperature -54.0 °C	4390 ksi @Temperature -65.2 °F	Fill, dry; SACMA SRM-1
Shear Modulus	1.50 GPa @Temperature 104 °C	218 ksi @Temperature 219 °F	In-plane, SACMA SRM-7, wet
	2.70 GPa @Temperature 82.0 °C	392 ksi @Temperature 180 °F	In-plane, SACMA SRM-7, wet
	5.00 GPa @Temperature 22.0 °C	725 ksi @Temperature 71.6 °F	In-plane, SACMA SRM-7, ambient
	6.30 GPa @Temperature -54.0 °C	914 ksi @Temperature -65.2 °F	In-plane, SACMA SRM-7, dry
	24.0 GPa @Temperature 121 °C	3480 ksi @Temperature 250 °F	Short beam, SACMA SRM-8, dry
	26.0 GPa @Temperature 22.0 °C	3770 ksi @Temperature 71.6 °F	Short beam, SACMA SRM-8, dry
Shear Strength	52.4 MPa @Temperature 104 °C	7600 psi @Temperature 219 °F	In-plane, wet; SACMA SRM-7
	59.3 MPa @Temperature 82.0 °C	8600 psi @Temperature 180 °F	In-plane, wet; SACMA SRM-7
	100 MPa @Temperature 22.0 °C	14500 psi @Temperature 71.6 °F	In-plane, ambient; SACMA SRM-7
	131 MPa @Temperature -54.0 °C	19000 psi @Temperature -65.2 °F	In-plane, dry; SACMA SRM-7
	593 MPa @Temperature 121 °C	86000 psi @Temperature 250 °F	Short Beam; SACMA SRM-8
	689 MPa @Temperature 22.0 °C	100000 psi @Temperature 71.6 °F	Short Beam; SACMA SRM-8

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

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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PCYTED078_6 / 192659

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