Braided packing rings are constructed from high-strength synthetic fibers like Kevlar, aramid, or carbon in square or lattice braid configurations. Impregnated with PTFE or graphite dispersions, they provide excellent abrasion resistance against sand and ceramic proppant while maintaining flexibility for conformal sealing around polished plungers in triplex and quintuplex pumps https://globalsealstech.com/product-category/oil-gas-seals/high-pressure-water-pump-seals/