Hexcel® HexMC® Epoxy

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Hexcel® HexMC® Epoxy
Categories:	Polymer; Thermoset; Epoxy
Material Notes:	Benefits: HexMC® M77 is a high performance carbon epoxy material designed for compression molding: Complex 3D net shaped parts Thickness variation Sharp angles, Stiffeners, Co-molded inserts Reinforced with continuous fiber material HexMC® technology bridges low performance/low cost SMC and high performance/high cost of autoclave/prepreg Cure from 2 minutes - 150° C (depending of part design). Co-curing possible with UD tape or continuous fiber in prepreg form – including HexPly® M77 fast curing system - to locally reinforce highly loaded parts Zero % waste achievable Attractive cosmetic surface aspect Main features: Compression molding Rough lay-up/preforming Press process Metallic molds Constant temperature level Net shape part Information provided by Hexcel Corporation.
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Physical Properties	Original Value	Comments

Density	1.55 g/cc

Mechanical Properties	Original Value	Comments
Tensile Strength	300 MPa	ASTM D3039
Tensile Modulus	38.0 GPa	ASTM D3039
Flexural Strength	500 MPa	ASTM D790
Flexural Modulus	30.0 GPa	ASTM D790
Compressive Strength	290 MPa	ASTM D6484
Compressive Modulus	38.0 MPa	ASTM D6484
Poissons Ratio	0.300
Shear Modulus	15.0 GPa	IPS; ASTM 7078
Shear Strength	70.0 MPa	Short Beam; ASTM D2344
	250 MPa	IPS; ASTM 7078

Thermal Properties	Original Value	Comments
Glass Transition Temp, Tg	120 °C

Processing Properties	Original Value	Comments
Cure Time	3.00 min @Temperature 150 °C
	4.00 min @Temperature 140 °C
	6.00 min @Temperature 130 °C
	8.00 min @Temperature 120 °C
	40.0 min @Temperature 100 °C
Shelf Life	1.50 Month @Temperature 23.0 °C
	18.0 Month @Temperature -18.0 °C

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PHEXCB9259 / 322415

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