Term: corrosion

Corrosion is the natural process by which metals deteriorate due to chemical reactions with their environment, typically involving moisture, oxygen, or other corrosive agents. In most cases, corrosion results in the formation of oxides or other compounds on the metal surface, such as rust on iron or steel. This process weakens the material, compromises structural integrity, and can lead to costly damage if not properly managed or prevented.

In the context of painting and surface preparation, corrosion must be treated or prevented using appropriate coatings, primers, and surface treatments to ensure long-term durability and protection of metal substrates.