A thermal barrier applied to exhaust systems reduces radiant heat emissions. This application often involves a flexible material, typically fiberglass or a similar high-temperature resistant fabric, wrapped around the exhaust components, such as manifolds or pipes. For example, a vehicle operator might apply this material to an exhaust manifold to lower the under-hood temperature and protect surrounding components.
The principal benefit of this heat management technique is the reduction of heat soak, which can improve engine performance and component lifespan. Historically, these treatments were primarily used in high-performance racing applications. However, their adoption has broadened as consumers seek to mitigate heat-related issues in everyday vehicles, improving fuel efficiency and protecting sensitive parts from degradation.
