Encapsulation adhesive in EV Charging Systems and MDTECH’s Material Selection Guide
1. Charging Gun Assembly
- Application Points:
- Plug/socket sealing
- PCB conformal coating
- Housing structural bonding
- Recommended Solutions:
✔️ PU Thermal Potting Compound MDPU 8110(8608)(IP68 waterproof, mating cycle >10,000)
✔️ Epoxy Thermal Potting (insulation for 1000V terminals, arc resistance)
✔️ Silicone Thermal Adhesive (metal/plastic bonding, -50℃~180℃ stability)
2. On-Board Charger (OBC)
- Application Points:
- Power module thermal management
- Magnetics (transformer/inductor) encapsulation
- EMI shield attachment
- Recommended Solutions:
✔️ Silicone Gap Filler (5.0W/m·K for MOSFET-heatsink interfaces)
✔️ Epoxy Potting Compound (UL94 V-0 flame retardant, vacuum-grade)
✔️ Conductive Silicone (EMI shielding, volume resistivity <0.01Ω·cm)
3. Battery Management System (BMS)
- Application Points:
- Harness fixation
- Control board protection
- Connector strain relief
- Recommended Solutions:
✔️ PU Thermal Adhesive (FPCB bonding, 100k flex cycles)
✔️ Low-Viscosity Silicone Potting (1000cps flow for fine circuits)
✔️ Fast-Cure Epoxy (connector reinforcement, 30min handling strength)
4. Charging Station Power Modules
- Application Points:
- IGBT thermal interface
- Bus capacitor fixation
- Enclosure IP protection
- Recommended Solutions:
✔️ Phase Change Material (0.03℃·cm²/W thermal resistance)
✔️ Flame-Retardant Silicone (IEC60695-11 vertical burn certified)
✔️ Threadlocker (vibration resistance up to 200Nm torque)
Special Condition Solutions
| Challenge | Strategy | Product Example |
|---|---|---|
| Thermal Shock (-40~125℃) | Silicone elastomers | Addition-Cure Silicone Rubber |
| High Voltage Arcing (≥1000VDC) | Ceramic-modified epoxy | Al₂O₃-Filled Insulating Compound |
| Chemical Exposure (Oil/Electrolyte) | Fluorosilicone formulations | Solvent-Resistant Sealant |
| Outdoor Weathering | UV-Stabilized PU | Anti-Yellowing Potting Compound |
Value-Added Services
✅ IATF 16949 certification package
✅ Automotive-grade testing (salt spray/vibration/thermal cycling)
✅ Customized formulations (color/hardness/flame retardancy)
I am text block. Click edit button to change this text. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.