In the rapidly evolving electric vehicle (EV) market, OEMs and suppliers face increasing pressure to reduce costs, enhance performance, and optimize component designs. One approach gaining attention is component integration, often referred to as “x-in-1 integration,” where multiple powertrain components such as the e-motor, inverter, on-board charger, and dc-dc converter are combined into a single compact unit.
This design strategy improves system efficiency, reduces weight, and saves space, but it also introduces new challenges in heat dissipation and long-term reliability at higher power densities.
To this end, Henkel has expanded its thermal management portfolio with two silicone-based potting materials, Loctite SI 5643 and Loctite SI 5637, formulated for critical EV power conversion components, such as onboard chargers and inverters.
These materials offer different levels of thermal conductivity to meet varying design needs.
Loctite SI 5643 and Loctite SI 5637 are two-component, fast-curing, low-viscosity thermally conductive silicone potting compounds for high-performance power electronics. Their self-leveling flow characteristics allow complete filling of small gaps, providing physical protection for sensitive components while maintaining efficient heat transfer.
With low Shore hardness and flexibility, both materials protect electrical and electronic assemblies against vibration and minimize mechanical stress during thermal cycling. By improving heat dissipation and reliability, these compounds support higher power density and longer service life in advanced EV systems.
Henkel continues to expand its e-mobility materials portfolio, supporting OEMs and suppliers in addressing thermal management, reliability, and production efficiency across EV platforms.
Filed Under: Onboard Charging, Technology News, Thermal Management