Quantum Composites QC-8770

Category: Vinyl Ester , Vinyl Ester
Manufacturer: Quantum Composites Inc.
Trademark: Quantum Composites
Fillers: -
Ports: Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms FOB, CIF, DAP, DAT, DDP
PDF: K7y819_Quantum-Composites-QC-8770.pdf
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QC-8770 is a hybrid vinyl ester based sheet molding compound (SMC) designed for compression molding of components requiring high structural strength. It exhibits unusual toughness, and excellent stiffness, and is suggested for applications subject to impacts and rough handling. QC-8770 is also suggested for applications requiring excellent fatigue resistance. It offers higher temperature capability than QC-8800.
General Information
Filler / Reinforcement
  • Glass Fiber, 63% Filler by Weight
Features
  • Fatigue Resistant
  • Good Impact Resistance
  • Good Stiffness
  • Good Toughness
  • High Strength
Appearance
  • Black
  • Grey
Forms
  • SMC - Sheet Molding Compound
Processing Method
  • Compression Molding
PhysicalNominal ValueUnitTest Method
Specific Gravity 1.85g/cm³ASTM D792
Molding Shrinkage - Flow 0.0%ASTM D955
Water Absorption (24 hr)0.15%ASTM D570
MechanicalNominal ValueUnitTest Method
Tensile Modulus 24100MPaASTM D638
Tensile Strength 345MPaASTM D638
Flexural Modulus 20000MPaASTM D790
Flexural Strength 552MPaASTM D790
ImpactNominal ValueUnitTest Method
Notched Izod Impact 1900J/mASTM D256
ThermosetNominal ValueUnit
Shelf Life (24°C)4.3wk
Demold Time (138°C)3.0 to 5.0min
InjectionNominal ValueUnit
Mold Temperature 132 to 149°C
Injection Pressure 1.38 to 6.89MPa
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