| Powder Properties : |
Unit |
Typical value |
| Apparent Density |
gm/ml |
0.2-0.3 |
| Bulk Factor |
—- |
4.60-7.0 |
| Shrinkage |
cm/cm |
0.003-0.006 |
| Pelleting |
—- |
Poor |
| Physical Properties : |
|
|
| Impact Strength |
Kg-cm |
10.0-18.0 |
| Tensile Strength |
kg/cm2 |
400-500 |
| Cross Breaking strength |
kg/ cm2 |
670-770 |
| Specific gravity |
—- |
1.38-1.40 |
| Plastic yield at 180°C |
Mm |
4-6 |
| Electrical Properties: |
|
|
Electrical Strength at 90 oC
|
V/mm |
1500-3000 |
| Volume resistivity |
log10 ohm-cm |
9.0-9.5 |
| Surface resistivity |
log10ohm |
8.9-9.2 |
| Other Properties: : |
|
|
| Water absorption |
Mg |
70-90 |
| Coefficient of linear thermal expansion per °C |
|
0.000035-0.000045 |
| Rate of cure : |
|
|
| Min. cure at 160°C |
sec/mm |
50-80 |
| Moulding conditions: |
|
|
| Recommended moulding temp. |
°C |
150-165 |
| Recommended moulding pressure |
kg/ cm2 |
250-450 |
