4220 PTFE GRAPHITE WITH ARAMID IN CORNERS BRAIDED PACKING
MK4220 is blended and braided with 1126Y and 3000Y by special process...
Made of various high strength and high-module spun araimd fibers through both advanced COVECORE blend spinning and PROIM fiber pretreatment process, rendering shaft high lubricity and low wearability due to dual lubricant content, and applicable for shaft-seal of reciprocating and rotating machines under high pressure and linear speed.