600°F Aircraft Silicone - Designed for moving air from 80°F to600°F, this silicone ducting is lightweight and extremely flexible. It is excellent for close-quarter applications where ducting has to snake around objects. Construction includes fiberglass cord with high-temperature silicone rubber-coated woven fiberglass fabric and bronze-plated steel-spring wire helix. Can be screwed together to form a continuous length. Good for applications where high temperatures exist such as brake ducting. Available in 11' sections only.