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Help CenterG11 Epoxy Glass Sheet / EPGC203 Sheet
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Description
G11 high-temperature epoxy resin fiberglass sheet is made by compressing fiberglass cloth impregnated with high-temperature resistant epoxy resin under heat. It offers excellent mechanical and dielectric properties, with stable performance under high temperature and high humidity conditions. The material is easy to process and has an insulation class of H. The standard color is yellow.
G11 is a fiberglass reinforced epoxy composite. It shares similar characteristics with G10, but provides a higher temperature resistance level, making it suitable for more demanding thermal environments.
Features
Excellent insulation performance with high dielectric strength, ensuring reliable electrical safety
High heat resistance (typically 160–180°C), maintaining mechanical and electrical properties under high temperature
Good flame retardancy for safer operation in electrical equipment
Low water absorption and strong moisture resistance for stable performance in humid environments
Excellent machinability for cutting, punching, and custom processing
Environmentally friendly materials and good recyclability
Applications
Electrical & Electronics
Insulation components for switchgear, transformers, and electrical apparatus
Electrical insulating boards and insulators
Mechanical Engineering
High-strength mechanical parts, gears, and support structures
Components requiring thermal stability under load
High-Temperature Applications
Insulation for high-temperature equipment and environments
Chemical Industry
Components and parts requiring resistance to chemical corrosion
Aerospace
Lightweight, high-strength components with excellent temperature stability
Construction & Structural
Structural insulation applications requiring reliable performance
| G11 Epoxy Glass Sheet / EPGC203 Sheet | |||
| No. | Item | Unit | Value |
| 1 | Density | g/cm3 | 1.8-1.95 |
| 2 | Water Absorption (Thickness:1-20mm) | mg | 17-73 |
| 3 | Flexural Strength ⊥ (Under Normal) | MPa | ≥340 |
| 4 | Impact Strength ∥ (Simple Supported Beam) | KJ/m2 | ≥38 |
| 5 | Dielectric Strength ⊥ (Transformer Oil at 90℃) 1mm | KV/mm | ≥14.2 |
| 6 | Breakdown Voltage ∥ (Transformer Oil at 90℃) | KV | ≥40 |
| 7 | Dielectric Constant (50Hz) | - | ≤5.5 |
| 8 | Dielectric Loss Factor (50Hz) | - | ≤0.04 |
| 9 | Insulation Resistance after Immersion | Ω | ≥5.0×1010 |
| 10 | Proof Tracking Index (PTI) | - | 220 |
| 11 | Thermal Index | - | 155 |
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