Sacrificial coatings are protective layers applied to surfaces to prevent corrosion and damage. These coatings are designed to corrode or wear away before the underlying material, such as metal, is affected. Commonly used in industries like construction and automotive, sacrificial coatings help extend the lifespan of structures and components. Typically made from materials like zinc or aluminum, sacrificial coatings are often applied through processes like galvanization or anodizing. When exposed to harsh environments, the coating sacrifices itself, providing a barrier against moisture and other corrosive elements, thereby safeguarding the integrity of the underlying material.