Withstanding -60°C to 300°C, high-temperature silicone rubber is an industrial "all-rounder". Its siloxane (Si-O) backbone forms a protective silica layer under heat, enhanced by heat-resistant fillers. Widely used in engine seals, spacecraft components, and LED encapsulation, China's 2023 breakthrough "ceramifiable silicone rubber" endures 500°C by forming a ceramic shield. As EV demand grows, thermally conductive variants (>1.5W/mK) are emerging, with new EU regulations accelerating innovation.