These Silicone wrapped Fiberglass Sleeves provide protection from ambient temperatures up to 500 Degrees F (260 Degrees C). This sleeving is highly flexible and engineered to protect hoses, cables and wire harnesses from damage caused by exposure to extreme heat, open flame and weld sparks, as well as containing radiant heat. Resists automotive chemicals and solvents, and provides protection from abrasion, punctures and moisture.