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corrosion
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corrosion

chemical process
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Also known as: rust
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How can glass paint protect surfaces from sunlight?
How can glass paint protect surfaces from sunlight?Learn about the development and applications of glass paint, which is made of silica glass and formulated to reflect sunlight, protecting surfaces from heat and damage.
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corrosion, wearing away due to chemical reactions, mainly oxidation (see oxidation-reduction, oxide). It occurs whenever a gas or liquid chemically attacks an exposed surface, often a metal, and is accelerated by warm temperatures and by acids and salts. Normally, corrosion products (e.g., rust, patina) stay on the surface and protect it. Removing these deposits reexposes the surface, and corrosion continues. Some materials resist corrosion naturally; others can be treated to protect them (e.g., by coating, painting, galvanizing, or anodizing).

This article was most recently revised and updated by Michele Metych.