It is mainly applied for barrel heaters on injection molding machines, and molds & dies on injection/extrusion machines. It can also be used in heat preservation and insulation on pipes, elbows, flanges, heat exchangers and the exhaust pipe of engines. It is made of ceramic fiber and high temperature resistance silicon cloth. The jacket 4 to 5 months to recover the cost. The higher the rate is, the less time it takes) 7. Long usage life of jacket (also can extend the life of heater by preventing it from continuous heating. And thus extend the lives of barrel and screw) 8. Water and oil proof, multi-layer protection, anti corrosion, easy to clean, easy to bend, pollution free and neat out looking. On condition