Wevo-Chemie Launches Thermal Silicone Compounds for Electric Vehicles
Stuttgart, Sunday, 9 March 2025.
Wevo-Chemie has released new WEVOSIL thermally conductive silicone products, enhancing performance in automotive power electronics. These materials are customizable and aid electric drivetrains in achieving optimal efficiency.
Advanced Technical Specifications
The new WEVOSIL product line demonstrates impressive thermal conductivity ranges, offering flexibility for various automotive applications. The compounds can be adjusted from 1 W/m·K for potting compounds, such as the WEVOSIL 22102 FL, to highly efficient gap fillers reaching 4 W/m·K with the WEVOSIL 26040 FL [1]. These third-generation materials enable rapid cycle times for efficient serial production, with customizable properties including flow behavior, pot life, hardness, and basic adhesion characteristics [1].
Production Capacity Enhancement
To meet growing market demands, Wevo-Chemie has strategically expanded its silicone production capabilities at its headquarters in Ostfildern near Stuttgart [3]. This expansion, announced in January 2025, positions the company to better serve the increasing requirements for customized gels, adhesives, gap fillers, and potting compounds essential for modern electronic components [3][5].
Market Impact and Environmental Considerations
The timing of this product launch aligns with significant shifts in the automotive industry, particularly as manufacturers seek alternatives to traditional materials. This development comes amid increasing regulatory scrutiny of certain automotive materials, such as PFAS in various automotive applications [7]. The silicone compounds’ durability and thermal management capabilities make them particularly valuable for electric vehicle applications, where component reliability under high operating temperatures is crucial [1].
Future Applications and Integration
These silicone compounds are specifically designed for DC/DC converters integrated into larger electric drivetrain units, including high-voltage batteries, main inverters, and onboard chargers [1]. A notable feature is the pronounced tackiness of the silicone gels, enabling sustained adhesion to housing components even after full curing and under high operating temperatures [1]. The company also maintains flexibility in development, offering polyurethanes and epoxy resins that can be adapted to specific customer requirements [1].