EPGC308/G11 is a product made by impregnating epoxy resin matrix onto electronic-grade alkali-free glass fiber cloth and processed through heat pressing, the performance is similar to EPGC203, which improves heat resistance, higher mechanical and electrical performance, stable mechanical energy under high temperature, and is suitable for H class transformer and motor insulation structure parts.
EPGC308 Epoxy Fiberglass Laminate Sheet
EPGC308, G11H, EPGC203
Grade H (180 degree)
UL94 V-0
Epoxy resin + Fiber glass
Green, Yellow, Black, White or customized.
0.1~300mm or customized.
1.80~2.0g/cm³
1020x2010mm,1020x2040mm,1220x2440mm or customized.
Improved heat resistance
Higher mechanical & electrical performance
Stable mechanical properties under high temperature
Higher mechanical properties when cold
Very low hygrometric susceptibility
Good dielectric properties
Small losses at high frequency
High resistance to flame ( V-0 )
Suitable for H class transformer and motor insulation structure parts
● All kinds of motor
● Electrical & Electronic
● High voltage switch gear
● Sensitive electronic equipment.
● Circuit Board manufacturing.
● Communication systems.
● Electrical equipment as insulation structure parts
| EPGC308, G11H, EPGC203 | ||||
|---|---|---|---|---|
| Physical Properties | Test Standard | Unit | Ref Value | Test Value |
| Density | ISO 1183 | g/cm³ | 1.8-2.0 | 1.8-2.0 |
| Water absorption (thickness 10 mm) | ISO 62 | mg | ≤35 | 18 |
| Mechanical Properties | ||||
| Flexural strength | ISO 178 | MPa | ≥340 | 545 |
| Elastic modulus from bending test | ISO 178 | MPa | ≥22000 | 26000 |
| Compressive strength perpendicular | ISO 604 | MPa | ≥350 | 620 |
| Impact strength Charpy or Izod | ISO 179/3C | kJ/m² | ≥50 | 100 |
| Shear strength parallel | VDE 0318/2 | MPa | ≥30 | 50 |
| Tensile strength | ISO 527-4 | MPa | ≥300 | 400 |
| Electrical Properties | ||||
| Dielectric strength at 90 °C in oil ⊥ | IEC 60243-1 | kV/mm | ≥14.2 | 19.2 |
| Dielectric strength at 90 °C in oil // | IEC 60243-1 | kV | ≥45 | 100 |
| Permittivity 50 Hz | IEC 60250 | ≤5.5 | 5.2 | |
| Permittivity 1 MHz | IEC 60250 | ≤5.5 | 5.2 | |
| Dissipation factor 50 Hz | IEC 60250 | ≤0.04 | 0.01 | |
| Dissipation factor 1 MHz | IEC 60250 | ≤0.04 | 0.04 | |
| Insulation resistance | IEC 60167 | MΩ | ≥50000 | 2.6x10^8 |
| Comparative tracking index (CTI) | IEC 60112 | V | ≥200 | 225 |
| Thermal Properties | ||||
| Thermal endurance | IEC 60216 | T.I. | ≥180 | 185 |
| Flammability | IEC 60707 | Class | - | - |
The above values are for reference only and are taken from the average test results, do not represent complete consistency with the actual performance of the material.
Yes, based on drawings or samples.
UL, RoHS, REACH, CE, ISO, etc.
Usually 100 kg or 100 sheets, negotiable.
Yes, common samples free, buyer pays freight.
2-4 weeks after payment.
Yes, including labeling and packaging.
Yes, over 20 years.
T/T 30% deposit, 70% before shipment. Negotiable if supports needed.
Yes, we offer CNC machining.
Manufacturer and Exporter
No.3, Mianzhi Street, Zhucheng, Shandong, China
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