INSULTHERM (FG) is an extremely high temperature resistant sleeve commonly used as thermal protection for wires, cables and hoses that are subjected to continuous and extreme high temperature environments, such as engine manifolds and exhaust systems. FG is braided from fiberglass yarns and saturated with temperature resins. FG is tough and durable, maintaining its tight structure under extreme vibration, abrasion, mechanical stress and temperature variations. FG is available in a wide range of diameters. It installs easily over a variety of applications to either deflect or retain heat in environments up to 649C.