Fr4 is made of ethoxyline and glass cloth, type is 3240, high mechanical performance under medium temperature, stable electrical properties under high temperature, fit for machine, electric apparatus and insulating parts for electronics.
1. Good mechanical workability.
2. Good heat resistance and moisture resistance.
3. In high temperature electric performance is stable.
4. Higher mechanical properties and dielectric properties.
5. In the middle temperature with high mechanical properties.
D.What are the Applications of our fr4 insulation material ?
1. Used in mechanical, electrical and electronic high insulation structure parts.
2. Used in high-performance electrical insulation requirements .
3.Chemical machine parts.
4.General machinese parts and gear. generators, Pads,base, baffle.
5.Generator,transformer,fixture,inverter,motor
6.Electric insulation component.
Technical of fr4 epoxy glass cloth laminated sheet
| Properties |
|
Unit |
Grade3240 |
| Flexural strengthperpendicular tolaminations. |
≥ |
MPa |
340 |
| A: under normalconditions |
| E-1/150: 150±5 °C |
- |
| Impact Strengthparallel tolaminations(Charpy) |
≥ |
kJ/m2 |
33 |
| InsulationResistance afterimmersion in water (D-24/23) |
≥ |
W |
5.0×108 |
| Dielectric strengthperpendicular tolaminations (in 90±2°Ctransformer oil,1 mm in thickness) |
≥ |
kV/mm |
14.2 |
| Breakdown voltageparallel tolaminations(in 90±2°Ctransformer oil) |
≥ |
kV |
35 |
| Permittivity(48-62Hz) |
≤ |
- |
5.5 |
| Permittivity (1MHz) |
≤ |
- |
5.5 |
| Dissipation factor (48-62Hz) |
≤ |
- |
0.04 |
| Dissipation factor (1MHz) |
≤ |
- |
0.04 |
| Water absorption(D-24/23, 1.6mm in thickness) |
≤ |
mg |
19 |
| Density |
|
g/cm3 |
(1.90-2.00) |
| Flammability |
|
Class |
- |
| Color |
|
- |
Natural |
Audited Supplier 
Audited Supplier 
){kind=link}
){kind=link}