Piston seal material selection directly impacts system efficiency, durability, and operational safety. Choosing the correct material ensures consistent sealing performance under varying pressures, temperatures, and fluid conditions. Common materials such as PTFE, NBR, FKM, and polyurethane each offer distinct advantages, including chemical resistance, low friction, or flexibility at low temperatures. Proper material selection reduces seal wear, prevents leakage, and minimizes downtime in hydraulic cylinders and actuators used across industrial, mobile, and energy applications. For OEMs and maintenance professionals, optimizing piston seal material selection leads to longer maintenance intervals and predictable system performance.