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BMC 685
| Category: | Polyester, TS , Thermoset Polyester |
| Manufacturer: | Bulk Molding Compounds, Inc. |
| Trademark: | BMC |
| Fillers: | - |
| Ports: | Qinzhou, Shekou, Shanghai, Ningbo |
| Delivery Terms | FOB, CIF, DAP, DAT, DDP |
| PDF: | UeXsyq_BMC-685.pdf  |
| PRICE: | Order Products email sales@su-jiao.com |
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BMC 685 molding compound is a mineral filled, glass fiber reinforced polyester compound suitable for compression, transfer and stuffer injection molding. It is characterized by good moldability, oil and solvent resistance and creep resistance at elevated temperatures. Typical applications include replacements for die castings and sheet molding compounds, valve covers, intake manifolds, oil pans and circuit breakers. BMC 685 molding compound is produced in extruded form in a range of industrial colors. It is available in logs up to 12 inches in length or as precut slugs, of specific weight, in diameters 1 in to 2.5 in. Within this range, smaller diameters are supplied as multiple extrusions and weight tolerances are plus or minus 5 %, up to a maximum of plus or minus 15 grams. |
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| Physical | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Specific Gravity | 1.75 | g/cm³ | ASTM D792 |
| Molding Shrinkage - Flow | 0.15 to 0.25 | % | ASTM D955 |
| Water Absorption (23°C, 24 hr) | 0.11 | % | ASTM D570 |
| Hardness | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Barcol Hardness | 60 | ASTM D2583 |
| Mechanical | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Tensile Strength | 72.4 | MPa | ASTM D638 |
| Flexural Strength | 197 | MPa | ASTM D790 |
| Compressive Strength | 197 | MPa | ASTM D695 |
| Impact | Nominal Value | Unit | Test Method |
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| Notched Izod Impact | 880 | J/m | ASTM D256 |
| Thermal | Nominal Value | Unit | Test Method |
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| Deflection Temperature Under Load (1.8 MPa, Unannealed) | 260 | °C | ASTM D648 |
| Electrical | Nominal Value | Unit | Test Method |
|---|---|---|---|
| Dielectric Strength 1 | 16 | kV/mm | ASTM D149 |
| Arc Resistance | 190 | sec | ASTM D495 |
| Comparative Tracking Index (CTI) | 500 | V | UL 746 |
| Flammability | Nominal Value | Unit | Test Method |
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| Flame Rating | UL 94 | ||
| 1.59 mm | HB | ||
| 3.18 mm | V-0 | ||
| 6.35 mm | V-0 |
| Note Message | |
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| 1 . | Method A (Short-Time) |
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| Witcobond® W-320 | Chemtura | PUR-Ether | Witcobond® |
| Axiall PVC 8681 | Axiall Corporation | PVC, Flexible | Axiall PVC |
| Indothene HD HD55EF010 | Reliance Industries Limited | HDPE | Indothene HD |
