Zinc-rich paints are coatings that contain a high percentage of zinc dust, which provides excellent corrosion resistance. These paints are commonly used to protect metal surfaces, especially in environments prone to rust and degradation. The zinc acts as a sacrificial anode, meaning it corrodes instead of the underlying metal, extending the life of structures like bridges and ships. These paints are often applied in industrial settings and are available in various formulations, including epoxy and polyurethane types. Zinc-rich paints are valued for their durability and ability to withstand harsh weather conditions, making them a popular choice for protective coatings.