 ##  [Corrosion Under Insulation](/index.php/corrosion-under-insulation) 

  ##  [Corrosion Under Insulation](https://engineering.quantumdictionary.io/corrosion-under-insulation-0) 

  
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**Engineering &amp; Applied Technologies Dictionary**

 
Definition

Localized corrosion of insulated metallic equipment or piping that occurs beneath thermal insulation as a result of moisture entrapment, chemical contaminants, or sustained wetting that creates an electrolyte at the metal/insulation interface.