... , PTFE, Kermel and Metamax. Synthetic Fiber Needled Felt Synthetic fiber has stronger interlocking capability. Compared with ... pure glass fiber needle felt, the peeling strength between felt and base fabric and friction resistance ... Setting, Acid ResistantHeat SettingPTFE MembraneDippingOil & Waterproof, Acid Resistant, Antistatic,Singed, Calendar, Heat SettingTemperature (oC)≤190≤260≤200≤ ...