Protective coatings for metals

This invention describes a way to make metal products more durable by applying a special protective coating. It involves first preparing the metal surface with a thin oxide layer, often by a process called anodizing. Then, a very thin layer of a liquid silicate solution is painted or sprayed onto this oxide layer and allowed to harden, forming a glass-like shield. The claims specifically focus on using silicate solutions to create this glass layer on various metals like aluminum, iron, and titanium.