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Master Bond adhesives

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Quantum Composites QC-8700 63% Glass Fiber Reinforced Vinyl Ester SMC
Categories: Polymer; Thermoset; Composite SMC; Vinyl Ester

Material Notes: QC-8700 is a vinyl ester engineered structural composite molding compound for compression molding of components requiring high structural strength. It exhibits unusual toughness, and is suggested for applications subject to impacts and rough handling. QC-8700 is also suggested for applications requiring excellent fatigue resistance. It exhibits better temperature resistance than QC-8800.

  • Form = Rolls, Festooned Sheet
  • Color = Black, Natural
  • Glass Fiber Content = 63% nominal

A. Schulman has acquired Quantum Composites.

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Physical PropertiesOriginal ValueComments
Specific Gravity 1.87 g/ccASTM D792
Water Absorption 0.080 %ASTM D570
Linear Mold Shrinkage 0.0010 in/inASTM D955
 
Mechanical PropertiesOriginal ValueComments
Hardness, Barcol 68ASTM D2583
Tensile Strength 344 MPaASTM D638
Tensile Modulus 26.1 GPaASTM D638
Flexural Strength 585 MPaASTM D790
Flexural Modulus 20.6 GPaASTM D790
Poissons Ratio 0.38ASTM D638
Izod Impact, Notched 1760 J/mASTM D256
 
Thermal PropertiesOriginal ValueComments
Glass Transition Temp, Tg 125 °CDMA
 
Processing PropertiesOriginal ValueComments
Processing Temperature 270 - 300 °F
@Thickness 12.7 mm
Compression Molding
Clamp Pressure 300 - 1000 psi
Cure Time 3.00 - 5.00 min
@Thickness 6.35 mm,
Temperature 138 °C
Shelf Life 2.00 Month
@Temperature 23.9 °C
 
Descriptive Properties
Fiber Length (in)1Glass, nominal

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 go back to viewing the property data in MatWeb's normal format.

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PCOQB902 / 139270

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