High-pressure grease injection packing consists of braided PTFE/Kevlar or aramid fiber impregnated with molybdenum disulfide. These low-friction, high-strength sets withstand 30,000 psi differential while allowing line speeds over 300 ft/min during extended-reach horizontal wireline operations. https://globalsealstech.com/product-category/oil-gas-seals/oil-free-lubricated-pump-seals/