This article discusses the critical issues of corrosion under insulation (CUI) in industrial settings, emphasizing the importance of insulating tanks, equipment, and pipework to reduce energy consumption and prevent burns. It identifies various factors contributing to CUI, such as insulation material choices, installation quality, mechanical damage, and moisture sources. The article highlights the significance of selecting appropriate coating systems to combat CUI effectively. It explores the benefits of thermally sprayed aluminum (TSA), polymeric coatings like epoxies and epoxy novolacs, and emerging low thermal conductivity coatings. The impact of coating thickness on surface temperature reduction is demonstrated, and Finite Element Analysis (FEA) quantifies energy savings. Additionally, the article underscores the moisture resistance of coatings compared to traditional materials like Rockwool. Overall, it emphasizes that selecting the right coating system can mitigate CUI, enhance energy efficiency, and yield long-term cost savings.

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