PTFE needle punched non woven felt PTFE needle punched felt are produced from 100% PTFE fiber which has been punched in three-dimentional structure. They have excellent features such as excellent flexibility, molding capability, high tensile strength, creep resistance, high and low temperature resistance, corrosion resistance and anti-aging. 100% PTFE filter material can meet requirements in hostile environments of temperature fluctuating and acid & alkali in all PH range. The lifespan of PTFE filter material will be guaranteed for over 4 years as long as the temperature is controlled under the maximum operating temperature. Features: Be composed of 100% pure PTFE; Can operate at 240 C continuously; Acid and alkali Resistance, corrosion resistance,have strong chemical stability (0-14 PH) Can be used under high humidity environment; Low shrinkage rate even if under high temperature, Aging resistance; No enviroment pollution Applications: Combustion Coal burning boiler waste incineration carbon black producing Tio2 producing for fume treatment or dust collection Application Common industry applications for fabric filter