Chesterton’s 412-W pump packing combines a newly developed synthetic composite yarn with a specially formulated break-in lubricant. 

• Pure white packing constructed of exclusive ARG™ synthetic yarn
• Superior tensile strength for durability and extrusion resistance
• Unique fibrous structure holds twice the PTFE blocking agent of traditional fibers
• Continuous filament center provides 10 times the tensile strength of typical packing fibers
• Purified colloidal lubricant prevents failure at start-up and maintains continuous lubrication throughout the break-in process.