The internal components of motors face multiple challenges such as high temperature, vibration, heat and humidity, and media erosion. MCOTI's high-reliability thermally conductive epoxy potting glue is specially designed for motor stator potting applications. It can fully penetrate the winding gap to achieve comprehensive filling and protection of turns, iron core and structural parts. The material has excellent thermal conductivity, insulation and mechanical strength, which can effectively improve the heat dissipation efficiency of the motor, reduce the operating temperature, and enhance the structural stability and environmental tolerance to meet the long-term reliable operation requirements of new energy vehicles, humanoid robots and industrial motors.
Application advantages:
Tg can reach 173℃, CTE can be as low as 13 ppm/K
Class F insulation temperature resistance grade
Excellent wetting and filling properties of turns, and full internal filling
Excellent high temperature resistance and oil resistance
Suitable for round wire and flat wire motor potting
Through the high heat dissipation of potting, the motor can operate at lower temperatures and has better durability.
Better mechanical stability and structural strength
Reliability test:
Thermal shock/temperature cycle: -40~150℃, 1000h cycle: no reduction in bonding strength, no attenuation of thermal conductivity and electrical insulation
Transmission oil resistance test: ATF oil 100℃/1000h: no attenuation of electrical insulation, bonding strength>61%
Double 85 humidity resistance test: 85℃/85%RH, 1000h: stable insulation, no performance degradation
High temperature accelerated aging: constant temperature 150℃/1000h: long-term stable performance indicators
Two-component thermally conductive silicone potting glue is specially designed for packaging applications with high heat dissipation requirements. It is suitable for power supply packaging. It can be cured at room temperature or heated to achieve optimal adhesion. After curing, the material forms a flexible and reliable elastomer, which can effectively fill the device gap, improve heat conduction efficiency, and reduce the device operating temperature. At the same time, it has excellent high and low temperature resistance, impact resistance and moisture and heat resistance, providing long-term and reliable protection for power modules, magnetic devices, vehicle electronics and industrial control equipment, significantly improving product service life and operational stability.
Application advantages:
High thermal conductivity
Good adhesion to the shell (aluminum/GF/reinforced PBT)
Low shrinkage during curing and little stress on components
High reliability, excellent impact resistance
Thermal Conductive Epoxy Potting for Motor
product | MEP 4210 | MEP 4215 | MEP 4570 |
Appearance | Component A: gray Component B: white After blending: gray | Component A: gray Component B: white After blending: gray | Component A: gray Component B: white After blending: gray |
Viscosity [mPa.s] | Component A: Paste Component B: 11,500 After mixing: 73,000@25℃ | Component A: Paste Component B: 11,500 After mixing: 75,000@25℃ | Component A: Paste Component B: 27,200 After mixing: 35,916@25℃ |
Mixing ratio | 1:1 | 1:1 | 1:1 |
Density [g/cm3] | Component A: 2.55 Component B: 2.55 | Component A: 2.67 Component B: 2.55 | Component A: 2.67 Component B: 2.79 |
hardness [Shore D] | 97 | 97 | 92 |
thermal conductivity [W/(m·K)] | 1.0 | 1.5 | 2.0 |
Shear strength [MPa] | 13 (aluminum/aluminum) | 13 (aluminum/aluminum) | 13 (aluminum/aluminum) |
Tg [℃] | 158 | 158 | 173 |
CTE [ppm/K] | 18/73 | 18/73 | 13/65 |
Dielectric strength [kV/mm] | >20 | >20 | >20 |
working temperature | -40~200℃ | -40~200℃ | -40~200℃ |
Thermal conductive potting silicone
Product | MSI 2408 | MSI 2450 | MSI 2410 | MSI 2415 | MSI 2420 | MSI 2420LH | MSI 24200 |
Appearance | Component A: gray Component B: white After blending: gray | Component A: gray Component B: white After blending: gray | Component A: gray Component B: white After blending: gray | Component A: gray Component B: white After blending: gray | Component A: gray Component B: white After blending: gray | Component A: gray Component B: white After blending: gray | Component A: Transparent and yellowish Component B: Transparent After blending: transparent |
Viscosity [mPa.s] | After mixing: 1,000-3,000 | After mixing: 2,000-4,000 | After mixing: 3,000-4,000 | After mixing: 2,000-4,000 | After mixing: 4,000-6,000 | After mixing: 6,000-7,000 | After mixing: 700-1,000 |
Mixing ratio | 1:1 | 1:1 | 1:1 | 1:1 | 1:1 | 1:1 | 1:1 |
Proportion | 1.7 | 1.7 | 2.0 | 2.6 | 2.8 | 2.8 | 0.98 |
Hardness [Shore A] | 50 | 50 | 60 | 60 | 60 | 10 | - |
Thermal conductivity [W/(m·K)] | 0.7 | 0.8 | 1.0 | 1.5 | 2.0 | 2.0 | - |
flame retardant UL 94 | V0 | V0 | V0 | V0 | V0 | V0 | V0 |
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