Epoxy glass cloth laminated sheets
Characteristics & applications：
Suitable for mechanical ,electrical, electronic usual applictions
| Properties | Units | Epoxy glass cloth laminated sheets | ||
| 3240 | 3240-1 | 3240F | ||
| 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 |
| colour | — | Natural | ||
| Reference standard | — | GB/T 1303.1-1998 | Enterprise’s standards | |
| 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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