Made of expanded PTFE with graphite, the Chemical Inertia of PTFE; Suitable for Dynamic application. SonPack F4460 Material: Expanded PTFE with Graphite.Structure: Lattice braid.Application Media: Chemical, solvents, corrosives, air, water, steam, gases, ammonia, oils, paper stock, liquor, condensate.Equipment: Rotating & Reciprocating equipment, valves. Industry Serviced: Chemical & ...