High-temperature fiberglass thermal wrap is designed to wrap exhaust manifolds and mufflers to protect other heat-sensitive components in the engine room. Hotshield® Minis Fiberglass Muffler/Manifold Thermal Wrap 1/8 in. x 3 in. x 25 ft. Foil Back | Western Pacific Trading 20029 Hotshield® Minis wrap 25 ft roll E-glass fiberglass thermal wrap 1/8 in. x 3 in. x 25 ft. 750F maximum temperature