Epoxy glass cloth laminated sheets
Characteristics & applications：
Suitable for mechanical ,electrical, electronic usual applictions
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Properties |
Units |
Epoxy glass cloth laminated sheets |
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|
3240 |
3240-1 |
3240F |
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|
Flexural strength perpendicular to lamination ≥ |
MPa |
340 |
320 |
340 |
| Notch impact strength parallel to lamination charpy ≥ |
KJ/m2 |
33 |
33 |
33 |
| Dielectric strength perpendicular to lamination（in oil 90±2℃） ≥ |
MV/m |
14.2 |
14.2 |
14.2 |
|
Breakdown voltage parallel to lamination（in oil 90±2℃） ≥ |
KV |
35 |
30 |
35 |
|
Relative dielectric coefficient ≤ |
— |
5.5 |
— |
5.5 |
|
Loss factor ≤ |
— |
0.04 |
— |
0.04 |
| Insulation resistance after impregnated in water ≥ |
Ω |
5×108 |
1×108 |
1×108 |
|
Water absorption1mm≤ |
mg |
18 |
18 |
18 |
|
Flammability |
— |
— |
— |
FV0 |
|
Color |
— |
Natural |
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|
Reference standard |
— |
GB/T
1303.1-1998 |
Enterprise’s standards |
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Characteristics & applications |
1. 3240 ： Suitable for mechanical ,electrical ,electronic usual applications, with high strength under moderate temperature and good electrical properties under high temperature.
2. 3240-1、3240F：Modified grades from 3240, 3240-1 not as strong mechanically as 3240,3240F is kind of flame retardant. |
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