EV Battery Coolant Resistant LSR Released

Keywords: EV battery silicone seal, coolant resistant LSR, liquid silicone rubber, thermal management silicone, low compression set
Key sentence: Coolant-resistant liquid silicone rubber with built-in lubricating properties simplifies assembly and extends sealing life for electric vehicle battery cooling circuits.

A leading silicone producer launched a new oil-exuding liquid silicone rubber optimized for EV thermal management systems this November. The platinum-cured LSR features excellent coolant compatibility, low compression set and high elasticity, stable from -45°C to 180°C. Its controlled surface bleed forms a permanent lubrication film, reducing friction during connector assembly without adding separate grease. The material passes strict automotive reliability tests including thermal cycling, fluid immersion and long-term aging. It fits battery cooling gaskets, plug seals and cooling line joints, applications where ordinary silicone swells and leaks after contact with glycol-based coolants. Auto Tier 1 suppliers face growing pressure to reduce field failure rates on battery packs; poor sealing is one top root cause. This grade eliminates post-assembly lubrication steps, cutting cycle time in high-volume LSR injection molding. Medical and food silicone makers are also watching this platform technology, as the controlled migration formula can be adapted for other low-friction elastomer parts. Purchasers must verify batch test reports for fluid resistance before large-scale qualification.