Quantum Composites QC-7753 50% Glass Fiber Reinforced Polyester SMC

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Quantum Composites QC-7753 50% Glass Fiber Reinforced Polyester SMC
Categories:	Polymer; Thermoset; Composite SMC; Polyester, TS; Thermoset Polyester Glass SMC
Material Notes:	QC-7753 is a polyester engineered structural composite molding compound that is designed for applications requiring high strength, fire retardant properties, and resistance to elevated temperatures. It offers fast molding cycles and good surface appearance. Form = Rolls, Festooned Sheet Color = Black, Gray Glass Fiber Content = 63% nominal A. Schulman has acquired Quantum Composites.
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Physical Properties	Original Value	Comments

Specific Gravity	1.74 g/cc	ASTM D792
Water Absorption	0.15 %	ASTM D570
Linear Mold Shrinkage	0.00050 in/in	ASTM D955

Mechanical Properties	Original Value	Comments
Hardness, Barcol	58	ASTM D2583
Tensile Strength	220 MPa	ASTM D638
Flexural Strength	400 MPa	ASTM D790
Flexural Modulus	15.8 GPa	ASTM D790
Compressive Strength	172 MPa	ASTM D695
Shear Modulus	4.50 GPa	ASTM D4065
Izod Impact, Notched	1600 J/m	ASTM D256

Thermal Properties	Original Value	Comments
Maximum Service Temperature, Air	>= 260 °C	Deflection Temperature, Load not specified; ASTM D648

Processing Properties	Original Value	Comments
Processing Temperature	270 - 315 °F	Compression Molding
Clamp Pressure	400 - 1200 psi
Cure Time	1.25 min @Thickness 1.52 mm, Temperature 143 °C
Shelf Life	1.00 Month @Temperature 23.9 °C

Descriptive Properties
Fiber Length (in)	1	Glass, nominal
Flammability	Self Extinguishing	ISO 3795

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PCOQB901 / 139269

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