THERMO-FLEX - 3" x 3ft The Thermo-Flex heat shield is a composite heat shield material with unlimited uses. The material is manufactured with a combination of materials to provide abrasion resistance, thermal insulation, physical containment of hoses and wiring. The combination of aluminum, silica and stainless steel can be combined to produce a sleeving that is flexible, lightweight and strong. The aluminum silica combination can be slit for applications such as wire looms or hose covering without disconnecting the ends of the wire hoses. Thermo-Flex is available in 5/8"- ¾"-1" 1¼"-1½" and 3" I.D. Custom sizes from ½" to 18" I.D. Thermo-Flex can withstand extreme temperature of 1050ºF in stainless steel or 740ºF in aluminum.