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The stator winding is integrally potted to enhance mechanical reliability.
Realize the integration of thermal conduction, insulation and structural fixation
Penetration of windings and tiny gaps, reducing voids and bubbles
The viscosity is lower than 2500 mPa·s at 80°C, and it can fully penetrate the windings and small gaps to form a dense potting structure.
The thermal conductivity is 2.0 W/m·K, which can quickly dissipate heat from the magnetic core and windings, reduce device temperature rise, and improve system thermal management efficiency.
High Tg and low CTE relieve thermal stress caused by hot and cold cycles and improve packaging reliability.
Enhance the mechanical strength of windings and magnetic devices while providing stable electrical insulation performance.
Resistant to humidity, heat, salt spray and chemical media, meeting the long-term outdoor operation requirements of wind power
| Classification | characteristic | MEP 4210 | MEP 4215 | MEP 4570 |
| Uncured | Viscosity after mixing [mPa・s] Brookfield LVDV | 25℃/14#/20rpm: 73,000 | 25℃/14#/10rpm: 75,000 | 25℃/14#/20rpm: 35,916 |
| 60℃/14#/20rpm: 7,700 | 60℃/14#/20rpm: 7,800 | 60℃/14#/20rpm: 4,058 | ||
| 80℃/14#/20rpm: 3,200 | 80℃/14#/20rpm: 3,400 | 80℃/14#/20rpm: 2,199 | ||
| Mixed density [g/cm³] | 2.59 | 2.61 | 2.73 | |
| Curing conditions | 2hr@100℃ + 3hr@150℃ + 1hr@180℃ | 2hr@100℃ + 3hr@150℃ + 1hr@180℃ | 2hr@100℃ + 3hr@150℃ + 1hr@180℃ | |
| After curing | hardness | Shore D97 | Shore D97 | Shore D92 |
| Thermal conductivity [W/m・K] | 1 | 1.5 | 2 | |
| Tg [℃] | 158 | 158 | 173 | |
| CTE below Tg [ppm/K] | 18 | 18 | 13 | |
| CTE above Tg [ppm/K] | 73 | 73 | 65 | |
| Young's coefficient [GPa] | 5.3 | 5.7 | 5.2 | |
| Shear strength [MPa] | 13 | 13 | 13 | |
| Tensile strength [MPa] | 18 | 18 | 18 | |
| Volume resistivity [ohm-cm] | > 1×10¹⁴ | > 1×10¹⁴ | > 1×10¹⁴ | |
| Insulation performance [kV/mm] | >20 | >20 | >20 | |
| Operating temperature [℃] | -40~200 | -40~200 | -40~200 |
