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Corrosion beneath a relatively concealed insulation layer

2025-12-29View Original

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Corrosion refers to the decline in the basic properties of a metal due to its reaction with the surrounding environment. This term is usually used to describe a metal losing an electron when it reacts with water or oxygen. Corrosion under insulation (CUI) refers to a type of corrosion that occurs at the interface between the metal surface and the insulating material. This is a particularly severe form of corrosion, as it is difficult to detect corrosion beneath the insulation layer. Due to the costs of removing and replacing insulation materials as well as labor expenses, it is often not possible to regularly inspect for corrosion beneath the insulation, which prevents this problem from being avoided.

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