Sumitomo Bakelite North America E 3938A Hardware Grade Epoxy
| Manufacturer | Sumitomo Bakelite North America |
| Trade Name | |
| Port | Ningbo port,China |
| Trade Terms | FOB, CFR, CIF |
| Payment Terms | L/C, T/T, Western Union |
Description
Material Notes:
Fiberglass reinforced epoxy molding compound with excellent dimensional stability, good strength and excellent electrical insulation properties.Information provided by Vyncolit, a Sumitomo Bak Group
| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Bulk Density | 0.750 g/cc | 0.0271 lb/in³ | Powder Density; ASTM D1895 |
| Density | 1.90 g/cc | 0.0686 lb/in³ | Relative Density; ASTM D792 |
| Water Absorption | 0.20 %
@Temperature 50.0 °C,
Time 173000 sec |
0.20 %
@Temperature 122 °F,
Time 48.0 hour |
ASTM D570 |
| Linear Mold Shrinkage | 0.0010 cm/cm | 0.0010 in/in | Compression Molding; ASTM D955 |
| Mechanical Properties | Metric | English | Comments |
|---|---|---|---|
| Tensile Strength at Break | 85.0 MPa | 12300 psi | ASTM D638 |
| Flexural Strength | 160 MPa | 23200 psi | At Rupture; ASTM D790 |
| Compressive Strength | 250 MPa | 36300 psi | ASTM D695 |
| Izod Impact, Notched | 0.270 J/cm | 0.506 ft-lb/in | ASTM D256 |
| Thermal Properties | Metric | English | Comments |
|---|---|---|---|
| CTE, linear | 28.0 µm/m-°C
@Temperature 20.0 °C
|
15.6 µin/in-°F
@Temperature 68.0 °F
|
Perpendicular; ASTM E-831 |
| CTE, linear, Parallel to Flow | 19.0 µm/m-°C
@Temperature 20.0 °C
|
10.6 µin/in-°F
@Temperature 68.0 °F
|
ASTM E-831 |
| Deflection Temperature at 1.8 MPa (264 psi) | 215 °C | 419 °F | As molded; ASTM D648A |
| >= 282 °C | >= 540 °F | Post Baked; ASTM D648A | |
| Oxygen Index | 33.5 % | 33.5 % | ASTM D2863 |
| Electrical Properties | Metric | English | Comments |
|---|---|---|---|
| Dielectric Constant | 4.1
@Frequency 1e+6 Hz
|
4.1
@Frequency 1e+6 Hz
|
Wet; ASTM D150 |
| Dielectric Strength | 16.4 kV/mm | 417 kV/in | 60Hz, Short Time, dry; ASTM D149 |
| Dissipation Factor | 0.010
@Frequency 1e+6 Hz
|
0.010
@Frequency 1e+6 Hz
|
wet; ASTM D150 |
| Arc Resistance | 186 sec | 186 sec | ASTM D495 |
| Descriptive Properties | Value | Comments |
|---|---|---|
| Color | Black, Blue | |
| Form | Granular | |
| Main Filler | Glass Fiber | |
| Molding Method | Compression, transfer |
