| About |
|---|
| BMC 400 is a high strength, low shrink molding compound. It can be supplied in bulk or extruded in pre-weighted slugs. Typical applications are HVAC condensation drain pans, power tool housings, insulators and circuit breakers.&& |
| Product Description | |
|---|---|
| Generic | 热固性聚酯 |
| Material Status | Commercial: Active |
| Features | Good Rigidity,Low contractility |
| Availabilitys | North America |
| Process Methods | Extrusion |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.75 to 1.95 | g/cm³ | ASTM D792 |
| Shrinkage rate | |||
| MD | 0.10 to 0.30 | % | ASTM D955 |
| Water absorption rate | |||
| 23℃，24hr | 0.12 to 0.20 | % | ASTM D570 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Impact strength of cantilever beam notch | 160 to 430 | J/m | ASTM D256 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 1.8 MPa, unannealed | > 260 | ℃ | ASTM D648 |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Dielectric strength | 14 to 16 | kV/mm | ASTM D149 |
| Arc resistance | |||
| 1.59 mm | > 180 | sec | ASTM D495 |
| Compared to the leakage tracing index | |||
| 1.59 mm | 500 | V | UL 746 |
| FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
|---|---|---|---|
| 1.60 mm | V-0 5V | UL 94 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| tensile strength | |||
| yield | 34.5 to 55.2 | MPa | ASTM D638 |
| Bending modulus | 11700 to 13100 | MPa | ASTM D790 |
| bending strength | |||
| yield | 96.5 to 138 | MPa | ASTM D790 |
| compressive strength | 124 to 159 | MPa | ASTM D695 |
| Babbitt hardness | 40 to 50 | ASTM D2583 |
| Process Conditions | |||
|---|---|---|---|
| injection | Nominal value | Unit | Test method |
| Barrel rear temperature | 138 to 166 | °C | |
| Barrel middle temperature | 138 to 166 | °C | |
| Barrel front temperature | 138 to 166 | °C | |
| Mold temperature | 138 to 166 | °C | |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. Method A (Short-Time) |
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