The use of PVC labels in medical sterilization is critical for tracking and labeling equipment that goes through rigorous processes such as autoclaving and ethylene oxide (EtO) sterilization. PVC is an ideal material due to its ability to withstand high temperatures and aggressive chemicals without losing its integrity. This article discusses the scientific aspects of PVC's resistance to sterilization and its ability to maintain adhesion even after multiple cycles, ensuring long-term functionality in demanding medical settings.