| About |
|---|
| BMC 1902 molding compound is a mineral filled, glass-fiber-reinforced alkyd compound suitable for compression molding. It was developed primarily for applications requiring very good impact and flexural strengths. Typical applications include phase barriers, connector bases, switch cases and circuit breaker handles. BMC 1902 molding compound is produced in a range Of industrial colors and is only supplied in bulk form.&& |
| Product Description | |
|---|---|
| Generic | 醇酸树脂 |
| Material Status | Commercial: Active |
| Features | Good Rigidity,High impact resistance,HB |
| Availabilitys | North America |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 2.07 | g/cm³ | ASTM D792 |
| Shrinkage rate | |||
| MD | 0.20 to 0.40 | % | ASTM D955 |
| Water absorption rate | |||
| 23℃，24hr | 0.23 | % | ASTM D570 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Impact strength of cantilever beam notch | 270 | 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 | 12 | kV/mm | ASTM D149 |
| Dielectric constant | |||
| 60 Hz | 7.10 | ASTM D150 | |
| Dissipation factor | |||
| 60 Hz | 0.030 | ASTM D150 | |
| Arc resistance | 180 | sec | ASTM D495 |
| Compared to the leakage tracing index | 500 | V | UL 746 |
| FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
|---|---|---|---|
| Flame retardant level | UL 94 | ||
| 1.60 mm | HB | UL 94 | |
| 3.20 mm | HB | UL 94 | |
| 6.40 mm | HB | UL 94 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| bending strength | 162 | MPa | ASTM D790 |
| compressive strength | 165 | MPa | ASTM D695 |
| Babbitt hardness | 70 | ASTM D2583 |
| Process Conditions | |||
|---|---|---|---|
| injection | Nominal value | Unit | Test method |
| 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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