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Belzona® Tackles Severe Cui On Column



Oil & Gas (OILG)



Tanks and Chemical Containment Areas (TCC)


Customer Location:

Refinery, UK


Application Date:

November 2005


Application Situation:

Severe Corrosion Under Insulation (CUI) on columns



Water ingress into the lagging caused corrosion which was accelerated by the elevated temperatures of the column which operated up to 185°C.



Belzona® 5851 (HA-Barrier)



Carbon steel


Application Method:

Application was carried out in accordance with Belzona Know-How System Leaflet TCC-5. The Belzona® 5851 was hand applied as a two coat system to grit blasted 8m sections of the column that were then re lagged before moving on to the next section. vessel remained in service throughout the application.


Belzona Facts:

Having tried numerous other products and rejecting them either for application or Health & Safety issues, Belzona was selected as the only product capable of being safely and easily applied online. An inspection in November 2007 showed no visible signs of degradation.


Photographs Description

  1. General view of refinery
  2. Application area after grit-blasting
  3. Completed application
  4. Completed application
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