Durostone® EPX -M S7
GFK-EP
Characteristics
- High mechanical strength
- High dielectric strength
- Manufactured by filament winding technology and consists of a special (EP) epoxy resin matrix reinforced with e-glass roving
Technical Specifications Durostone® EPX -M S7
| Test Method | Unit | Guideline Value | |
|---|---|---|---|
| Density | ISO 1183 | g / cm3 | 2,1 |
| Flexural strength ┴ | ISO 178 | MPa | 700 |
| Flexural strength ┴ +150°C | ISO 178 | MPa | 350 |
| Modulus of elasticity in flexion ┴ | ISO 178 | MPa | 35000 |
| Compressive strength (tangential) | ISO 604 | MPa | 500 |
| Compresive strength (axial) | ISO 604 | MPa | 110 |
| Compressive strength (radial) | ISO 604 | MPa | 110 |
| Tensile strength II | ISO 527 | MPa | 800 |
| Impact strength (radial) | ISO 179 | kJ / m2 | 250 |
| Test Method | Unit | Guideline Value | |
|---|---|---|---|
| Thermal conductivity ┴ | W / (m * K) | ≈ 0,35 | |
| Temperature index | IEC 60216 | T.I. | 180 |
| Insulation class | IEC 60085 | / | H |
| TG-Value | DSC | °C | 150 |
| Coefficient of linear expansion (tangential) | TMA | 10-6 x K-1 | 5 - 10 |
| coefficient of linear expansion (axial) | TMA | 10-6 x K-1 | 20 - 30 |
| coefficient of linear expansion (radial) | TMA | 10-6 x K-1 | 25 - 40 |
| Test Method | Unit | Guideline Value | |
|---|---|---|---|
| Electric strength 90°C under oil ┴ | IEC 60243 | kV / mm | 5 |
| Electric strength 90°C under oil II | IEC 60243 | kV/25mm | 35 |
| Relative permittivity (50 Hz) | IEC 60250 | εr | ≈ 5 |
| Dielectric loss factor (50 Hz) | IEC 60250 | tan δ | ≈ 0,03 |
| Insulation resistance after 24 h water immersion | IEC 60167 | Ω | 5 x 109 |
| Comparative tracking index | EN 60112 | CTI | 225 |
