What is typically used to prevent rust in caskets made of steel?

The use of galvanization is an effective method to prevent rust in steel caskets. This process involves coating the steel surface with a layer of zinc, which acts as a barrier against moisture and oxygen—two primary elements that contribute to rust formation. Zinc is sacrificial; when the coating is intact, it protects the underlying steel by corroding first. Even if the zinc layer gets scratched or damaged, the exposed steel is still protected for a significant amount of time.

This method is particularly suitable for steel caskets as it not only enhances their durability but also can help in preserving the aesthetic quality of the casket over time. The galvanization process is commonly employed in various industries to extend the lifespan of metal products, making it a standard practice in casket manufacturing as well.

While other options like zinc coating and polyurethane paint may provide some level of rust prevention, galvanization is specifically recognized for its effectiveness in protecting steel from corrosion in a more durable and long-lasting manner.