Anti-rust paint is a type of coating designed to protect metal surfaces from corrosion caused by exposure to the atmosphere, seawater, and other harsh environments. It is generally divided into two main categories: physical anti-rust paints and chemical anti-rust paints. Physical anti-rust paints work by forming a dense film through the combination of pigments and binders, which acts as a barrier against corrosive elements. Examples include iron red, aluminum powder, and graphite-based anti-rust coatings. On the other hand, chemical anti-rust paints rely on the presence of rust-inhibiting pigments that chemically react with the metal surface to prevent oxidation. Common examples are red lead and zinc yellow anti-rust paints. These coatings are widely used in industries such as construction, marine engineering, and infrastructure to protect structures like bridges, ships, and pipelines from rust and degradation over time.
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