Quantum Composites QC-8704 63% Glass Fiber Vinyl Ester SMC

Login to see your most recently viewed materials here. Or if you don't have an account with us yet, then click here to register.

Quantum Composites QC-8704 63% Glass Fiber Vinyl Ester SMC (discontinued **)
Categories:	Polymer; Thermoset; Composite SMC; Filled/Reinforced Thermoset; Vinyl Ester; Vinyl Ester Sheet Molding Compound
Material Notes:	QC-8704 is a vinyl ester-based epoxy sheet molding compound (SMC) designed for compression and transfer molding of components requiring high structural strength. It exhibits unusual toughness, and is suggested for applications subject to impacts and rough handling. QC-8704 is also suggested for applications requiring excellent fatigue resistance. It incorporates short glass fibers for easy flow. Form and Color = Rolled Sheet, Black. Glass Fiber Length = .25 inch. A. Schulman has acquired Quantum Composites.
Key Words:	Sheet Molding Compound
Vendors:	No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
Printer friendly version Download as PDF Download to Excel (requires Excel and Windows) Export data to your CAD/FEA program Add to Folder:

Physical Properties	Metric	English	Comments

Density	1.90 g/cc	0.0686 lb/in³	ASTM D792
Water Absorption	0.35 %	0.35 %	24 Hrs. ASTM D955

Mechanical Properties	Metric	English	Comments
Hardness, Barcol	65	65	ASTM D2583
Tensile Strength, Ultimate	275 MPa	39900 psi	ASTM D638
Flexural Yield Strength	413 MPa	59900 psi	ASTM D790
Flexural Modulus	17.2 GPa	2490 ksi	ASTM D790
Izod Impact, Notched	15.0 J/cm	28.1 ft-lb/in	ASTM D256

Electrical Properties	Metric	English	Comments
Electrical Resistivity	5.00e+14 ohm-cm	5.00e+14 ohm-cm	ASTM D257
Surface Resistance	3.00e+14 ohm	3.00e+14 ohm	ASTM D257
Dielectric Constant	4.7	4.7	ASTM D150
Dielectric Strength	15.0 kV/mm	381 kV/in	ASTM D149
Dissipation Factor	0.0090	0.0090	ASTM D150
Arc Resistance	134 sec	134 sec	ASTM D495

Thermal Properties	Metric	English	Comments
Shrinkage	0.0010 %	0.0010 %

Processing Properties	Metric	English	Comments
Processing Temperature	132 - 149 °C	270 - 300 °F	Mold temperature

**
Materials flagged as discontinued () are no longer part of the manufacturer’s standard product line according to our latest information. These materials may be available by special order, in distribution inventory, or reinstated as an active product. Data sheets from materials that are no longer available remain in MatWeb to assist users in finding replacement materials.

Users of our Advanced Search (registration required) may exclude discontinued materials from search results.

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.

Users viewing this material also viewed the following:
Quantum Composites QC-8100 60% Glass Fiber Vinyl Ester SMC
Quantum Composites QC-8800 63% Glass Fiber Vinyl Ester SMC
Quantum Composites QC-8805 66% Glass Fiber Vinyl Ester SMC
A. Schulman BMC 845 30% Glass Filled Vinyl Ester
A. Schulman BMC 845 Vinyl Ester Molding Compounds, 30% Glass-Filled

PCOQCB / 29048

	Advertise with MatWeb!
	Data sheets for over 180,000 metals, plastics, ceramics, and composites.
	HOME • SEARCH • TOOLS • SUPPLIERS • FOLDERS • ABOUT US • FAQ • LOG IN

System Message