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Quantum Composites QC-8704

Vinyl Ester

Glass Fiber Reinforcement, 63%

Supplied by Quantum Composites Inc.

The technical datasheet with complete property values for Quantum Composites QC-8704 is available to members of the Prospector Plastics Database.
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Product Description
QC-8704 is a vinyl ester based 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.
General  
Material Status 
  • Commercial: Active
Availability 
  • North America
Filler / Reinforcement 
  • Glass Fiber Reinforcement, 63% Filler by Weight
Features 
  • Fatigue Resistant
  • Good Flow
  • Good Impact Resistance
  • Good Toughness
  • High Strength
Appearance 
  • Black
  • Grey
  
Forms 
  • SMC - Sheet Molding Compound
Processing Method 
  • Compression Molding
Physical
Nominal Value
Unit
Test Method
Specific Gravity
 
 ASTM D792
Molding Shrinkage - Flow
in/in
 ASTM D955
Water Absorption (24 hr)
%
 ASTM D570
Mechanical
Nominal Value
Unit
Test Method
Tensile Strength
psi
 ASTM D638
Flexural Modulus
psi
 ASTM D790
Flexural Strength
psi
 ASTM D790
Impact
Nominal Value
Unit
Test Method
Notched Izod Impact
ft·lb/in
 ASTM D256
Hardness
Nominal Value
Unit
Test Method
Barcol Hardness
 
 ASTM D2583
Electrical
Nominal Value
Unit
Test Method
Surface Resistivity
ohms
 ASTM D257
Volume Resistivity
ohm·cm
 ASTM D257
Dielectric Strength
V/mil
 ASTM D149
Dielectric Constant
 
 ASTM D150
Dissipation Factor
 
 ASTM D150
Arc Resistance
sec
 ASTM D495
Thermoset
Nominal Value
Unit
Test Method
Shelf Life (75°F)
wk
  
Demold Time (280°F)
min
  
Related Terminology
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Features
Features may also be described by the following terms: High Strength, Good Flow, Good Impact Resistance, Good Toughness, Tough.
Notes
1Typical properties: these are not to be construed as specifications.
 
IDES
Copyright © 2012 IDES
The information presented on this datasheet was acquired by IDES from the producer of the material. IDES makes substantial efforts to assure the accuracy of this data. However, IDES assumes no responsibility for the data values and strongly encourages that upon final material selection, data points are validated with the material supplier.