
Component: Alkali-free E-glass cloth impregnated with epoxy and phenolic resin
Characteristics: high mechanical and dielectric performance, high strength under
moderate temperature and good electrical properties under high
humidity.
Sheet Size: 1020mm x 1220mm, 1020mm x 2040mm
Thickness: 0.1mm-100mm
Technical Data:
| Properties | Unit | Grade | |
| 3240 | |||
| Flexural Strength perpendicular to laminations | |||
| A: under normal conditions | ≥ | MPa | 340 |
| E-1/150: 150±5 ℃ | ≥ | _ | |
| Impact Strength parallel to laminations (Charpy) | ≥ | KJ/m2 | 33 |
| Insulation Resistance after immersion in water | ≥ | W | 5.0×108 |
| (D-24/23) | |||
| Dielectric Strength perpendicular to laminations | ≥ | MV/m | 14.2 |
| (in 90±2 ℃ transformer oil, 1 mm in thickness) | |||
| Breakdown Voltage parallel to laminations | ≥ | KV | 35 |
| (in 90±2℃ transformer oil) | |||
| Permittivity (50Hz) | ≤ | — | 5.5 |
| Permittivity (1MHz) | ≤ | — | 5.5 |
| Dissipation Factor (50Hz) | ≤ | — | 0.04 |
| Dissipation Factor (1MHz) | ≤ | — | 0.04 |
| Water Absorption (D-24/23, 1.6mm in thickness) | ≤ | mg | 19 |
| Density | g/cm3 | (1.70-1.90) | |
| Flammability | — | — | |
| Color | — | Natural | |