Sherwin-Williams unveils new advanced energy barrier that eliminates threat of corrosion under insulation.
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Sherwin-Williams unveils new advanced energy barrier that eliminates threat of corrosion under insulation. 6/26/2026 12:00:00 PM * Heat-Flex AEB rivals thermal retention capabilities of traditional insulation systems for a more sustainable approach to insulating assets With Heat-Flex(R) AEB (Advanced Energy Barrier), the highly costly and dangerous phenomenon of corrosion under insulation (CUI) could be a thing of the past. Because by replacing the bulky mineral-based insulation traditionally used on storage tanks, process vessels, and piping to retain heat, the innovative coating essentially eliminates the conditions needed for CUI to develop in the first place. CUI occurs when water penetrates traditional insulation systems and becomes trapped against metal surfaces, creating a corrosive environment that is often hidden from view. Heat-Flex AEB replaces such insulation with a thick film of insulative coating material, capable of retaining operating temperatures of up to 177°C (350°F), with excursions to 204°C (400°F). Neil Wilds, Global Product Director - CUI, at Sherwin-Williams Protective & Marine, said: "Corrosion under insulation requires the presence of insulation. By removing this from an asset and applying the thermal insulative coating in its place, there is no longer any physical system under which corrosion under insulation could occur. Therefore, the...
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