The highest quality reflective heat shield on the market, there is no better way to shield up to 90% of radiant heat. We use a 1/4" thick ceramic inner pad sandwiched between heavy duty foil and bound together with a stainless steel mesh at the edges. By binding the edges with this mesh, we create greater flexibility and a more rugged product. This heat shield withstands 1100°F continuous radiant heat and 500°F of direct contact. Reflect-A-Shield™ is not designed for direct contact with exhaust systems, this heat shield is intended for wrapping around air boxes, electrical boxes, air conditioning components, or used as a catalytic converter and muffler heat shield. All of these reflective heat shields may be fastened with Thermal-Tie™, safety wire, screws, or rivets.