Quantum Composites QC-8777 41% Glass Fiber Reinforced Polyester Hybrid SMC

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Quantum Composites QC-8777 41% Glass Fiber Reinforced Polyester Hybrid SMC
Categories:	Polymer; Thermoset; Composite SMC; Polyester, TS; Thermoset Polyester Glass SMC
Material Notes:	QC-8777 is a polyester hybrid engineered structural composite molding compound designed for compression molding of components requiring high structural strength, corrosion resistance and temperature resistance combined with low molded density. Form = Rolls, Festooned Sheet Color = Black, Natural Glass Fiber Content = 41% nominal A. Schulman has acquired Quantum Composites.
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Physical Properties	Metric	English	Comments

Specific Gravity	1.30 g/cc	1.30 g/cc	ASTM D792
Water Absorption	0.13 %	0.13 %	ASTM D570
	1.2 % @Temperature 50.0 °C, Time 3.60e+6 sec	1.2 % @Temperature 122 °F, Time 1000 hour	ASTM D570
Linear Mold Shrinkage	-0.00100 cm/cm	-0.00100 in/in	ASTM D955

Mechanical Properties	Metric	English	Comments
Tensile Strength	105 MPa	15200 psi	ASTM D638
Flexural Strength	235 MPa	34100 psi	ASTM D790
Flexural Modulus	11.4 GPa	1650 ksi	ASTM D790
Izod Impact, Notched	9.60 J/cm	18.0 ft-lb/in	ASTM D256

Thermal Properties	Metric	English	Comments
Maximum Service Temperature, Air	>= 250 °C	>= 482 °F	Deflection Temperature, Load not specified; ASTM D648

Processing Properties	Metric	English	Comments
Processing Temperature	132 - 160 °C @Thickness 12.7 mm	270 - 320 °F @Thickness 0.500 in	Compression Molding
Clamp Pressure	2.07 - 6.89 MPa	300 - 1000 psi
Cure Time	3.00 - 5.00 min @Thickness 6.35 mm, Temperature 149 °C	0.0500 - 0.0833 hour @Thickness 0.250 in, Temperature 300 °F
Shelf Life	1.00 Month @Temperature 23.9 °C	1.00 Month @Temperature 75.0 °F

Descriptive Properties
Fiber Length (in)	1		Glass, nominal
Flammability	Self Extinguishing		FMVSS 302-75

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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PCOQB903 / 139271

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