Insultherm Header Wrap SI is designed to withstand extreme temperatures, making it ideal for wrapping headers, exhaust systems, and other high-heat components.
Engineered from texturized amorphous silica filament yarn, this wrap offers superior strength and flexibility. Unlike traditional leached fiberglass wraps, the texturized silica construction forms a dense, insulating barrier that delivers long-lasting durability and exceptional heat retention.
By keeping heat contained within the exhaust system, Insultherm Header Wrap SI helps improve exhaust flow, which can lead to increased horsepower, enhanced fuel efficiency, and lower under-hood temperatures—by as much as 70%.
Perfect for automotive, motorsport, marine, and industrial exhaust systems where high heat protection and performance gains are critical.
Melt Point (ASTM D-2117) 3,000°F / 1,649°C
Maximum Continuous 2,000°F / 1,093°C
Recommended Cutting: Scissors