... -alkali 2.25 years' experience 3.ISO9001:2008 Nomex needle felt characteristics: high temperature(204-240), anti-acid, anti-alkali, ... temperature gas, etc. The technical data of nomex filter felt is as follows: HZ Filter FeltREF CODE:HZFF-PA-500NAME ... plain,twill,satin construction,any dimension is available. 2.needle felt sieriesMade of polyester,polypropylene,acrilic,PPS,fiberglass,PTFE,P84,Nomex ...