Description
EPGM203 is a high-performance epoxy glass mat laminate engineered for demanding industrial applications. Made from high-Tg epoxy resin reinforced with glass mat, it provides excellent mechanical strength, stable electrical insulation, and superior resistance to thermal degradation.
This material is ideal for electrical insulation components, structural parts, and other applications requiring high strength, thermal stability, and durability in harsh environments.
Features
High mechanical strength, suitable for demanding electrical and mechanical applications
Excellent electrical insulation and dielectric stability
F-grade heat resistance, continuous operation up to 155 °C
Resistant to humidity, temperature fluctuations, and mechanical stress
Ideal for motors, transformers, and high-temperature machinery
Robust and durable material for long-term reliability
Applications
Electrical Insulation: Motors, transformers, generators, and other high-temperature electrical equipment
Mechanical Components: Structural parts requiring high strength and durability
High-Temperature Machinery: Components exposed to heat, humidity, and mechanical stress
Suitable for industrial applications demanding reliable mechanical and electrical performance
Technical Data Sheet
| EPGM203 Epoxy Glass Mat Laminated Sheet |
| Physical Properties | Standard | Unit | Ref Value | Test Value |
| Density | ISO 1183 | g/cm3 | 1.8-2.0 | 1.8-2.0 |
| Water absorption ( 3mm) | ISO 62 | mg | ≤40 | 35 |
| Mechanical Properties | Standard | Unit | Ref Value | Test Value |
| Flexural strength | ISO 178 | MPa | ≥320 | 385 |
| Elastic modulus of bending test | ISO 178 | MPa | ≥15000 | 18000 |
| Compressive strength perpendicular | ISO 604 | MPa | ≥350 | 450 |
| Impact strength Charpy or Izod | ISO 179/3C | kJ/m2 | ≥55 | 98 |
| Shear strength parallel | VDE 0318/2 | MPa | - | 40 |
| Tensile strength | ISO 527-4 | MPa | ≥250 | 275 |
| Electrical Properties | Standard | Unit | Ref Value | Test Value |
| Dielectric strength ⊥1mm at 90 °C in oil | IEC 60243-1 | kV/mm | ≥10.5 @2mm | 16.5 @2mm |
| Breakdown voltage ∥ at 90 °C in oil | IEC 60243-1 | kV | ≥35 | 80 |
| Permittivity 50 Hz | IEC 60250 | - | ≤5.5 | - |
| Permittivity 1 MHz | IEC 60250 | - | ≤5.5 | - |
| Dissipation factor 50 Hz | IEC 60250 | - | ≤0.05 | - |
| Dissipation factor 1 MHz | IEC 60250 | - | ≤0.05 | - |
| Insulation resistance after 24h in water | IEC 60167 | MΩ | ≥5x10^9 Ω | 5x10^12 Ω |
| Comparative tracking index (CTI) | IEC 60112 | V | ≥180 | 190 |
| Thermal Properties | Standard | Unit | Ref Value | Test Value |
| Thermal Endurance | IEC 60216 | T.I. | ≤155 | 155 |
| Flammability | IEC60707 | Class | - | - |