Chemical resistance is a major consideration for seals used in wireline equipment. Exposure to sour gas, acids, and completion fluids can degrade unsuitable materials. Swelling, cracking, or loss of elasticity compromises sealing performance. Advanced compounds such as HNBR and FKM are often chosen to resist aggressive environments, ensuring long service life and consistent performanc... https://globalsealstech.com/product-category/oil-gas-seals/oil-free-lubricated-pump-seals/