Sacrificial coatings are protective layers applied to materials, particularly metals, to prevent corrosion and degradation. These coatings are designed to corrode or wear away before the underlying material, effectively acting as a barrier against environmental factors like moisture and salt. Common examples include zinc coatings on steel structures, which protect the steel from rusting. The primary function of sacrificial coatings is to extend the lifespan of the base material by sacrificing themselves. When the coating deteriorates, it can be easily reapplied, ensuring continued protection. This method is widely used in various industries, including construction, automotive, and marine applications.