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: | mWR9Q4_Quantum-Composites-QC-8704.pdf ![]() |
PRICE: | Order Products email sales@su-jiao.com |
Message |
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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 Information | |
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Filler / Reinforcement |
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Features |
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Appearance |
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Forms |
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Processing Method |
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Physical | Nominal Value | Unit | Test Method |
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Specific Gravity | 1.90 | g/cm³ | ASTM D792 |
Molding Shrinkage - Flow | 0.10 | % | ASTM D955 |
Water Absorption (24 hr) | 0.35 | % | ASTM D570 |
Hardness | Nominal Value | Unit | Test Method |
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Barcol Hardness | 65 | ASTM D2583 |
Mechanical | Nominal Value | Unit | Test Method |
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Tensile Strength | 276 | MPa | ASTM D638 |
Flexural Modulus | 17200 | MPa | ASTM D790 |
Flexural Strength | 414 | MPa | ASTM D790 |
Impact | Nominal Value | Unit | Test Method |
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Notched Izod Impact | 1500 | J/m | ASTM D256 |
Electrical | Nominal Value | Unit | Test Method |
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Surface Resistivity | 3.0E+14 | ohms | ASTM D257 |
Volume Resistivity | 5.0E+14 | ohms·cm | ASTM D257 |
Dielectric Strength | 15 | kV/mm | ASTM D149 |
Dielectric Constant | 4.70 | ASTM D150 | |
Dissipation Factor | 9.0E-3 | ASTM D150 | |
Arc Resistance | 134 | sec | ASTM D495 |
Thermoset | Nominal Value | Unit | |
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Shelf Life (24°C) | 8.7 | wk | |
Demold Time (138°C) | 3.0 to 5.0 | min |
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