Silicone Potting Demand Rises for EV Power Units

Global automakers and new energy component makers are boosting investment in high-voltage power electronics, pushing up orders for silicone potting compounds in Q3 2026. Thermally conductive silicone potting rubber serves as core encapsulation material for EV onboard chargers, inverters and battery management modules. It delivers stable thermal dissipation, electrical insulation, vibration resistance and moisture protection under continuous high-temperature operation.

Industry statistics show the automotive-grade thermally conductive silicone potting market maintains fast growth. Buyers prefer low-viscosity, flame-retardant and low-outgassing silicone formulations to meet automated mass production. Many silicone manufacturers including Hongye Silicone optimize two-part liquid silicone potting grades, tuning curing speed and thermal conductivity to fit different power module designs.

As EV lightweighting and component miniaturization become mainstream, multi-functional silicone potting materials combining high thermal conductivity and low density will become the mainstream selection. Silicone suppliers must keep improving formulation stability and batch consistency to satisfy strict automotive reliability testing standards.