GS 4200 Pure PTFE Sheet Aiflon PTFE product includes sheets , rods,tube,tapes and gaskets etc.,they are molded,skived or cut from 100% virgin PTFE..It has the best chemical corrosion resistance among known plastics,without being aging.lowest friction coefficient,wear resistance.the unloaded operating temperature range is 180 to 260.GS 4200F Filled pefesheet The filled ptfe products are molded ptfe resin mixed with the most frequently used filler materials such as glass fiber , carbon fiber and etc.the filled ptfe has improved compression strength, better abrasion resistance ,high themal conductiviry and lower thrmal expansion compared with pure ptfe products. APPLICATION; Sealing materials ,electrical insulating parts ,lining,oil less lubricating,oil less lubricating materials etc.