PTFE packing It is a interlock braided packing manufactured from pure ptfe yarns pretreated with ptfe dispersion, plus a break-in lubricant to reduce the coefficient of friction. This is a dimensionally stable packing, yet relatively soft and pliable, which has excellent lubricating and running characteristics. It handles all acids, alkalis, and most chemicals, with the exception of molten alkali metals. It is suited for high speed rotary shaft service and is also commonly used on reciprocating pumps, mixers, agitators, and reactors. 2kg or 5kg per spool