KHIA headerKnow-How in Action


Belzona Seal Survives The Acid Test



Petrochemical (PETR)


Áreas Know-How:

Tanks and Chemical Containment Areas (TCC)


Cliente / ubicación:

Petrochemical Plant, Torun, Poland


Fecha de aplicación:

June 2005


Situación de aplicación:

Process Column



The column operated with acids, trichloroacetic aldehyde, dichloroethane and trichloroethane at 20-100C and is protected by a graphite fibre reinforced laminate. This lining was additionally protected with acid proof bricks. In the first year of operation it emerged that there was no possibility of sealing the column manhole after opening during routine inspection, and a suitable protective system was needed.



Belzona® 4181 (AHR Magma Quartz)Belzona® 4341 (Magma CR4)



Fibre Reinforced Composite, Steel


Método de aplicación:

Application was carried out in accordance with Belzona Know-How System Leaflet TCC-3. The internal lining was removed in both manhole areas. The first layer of protection used Belzona® 4181 in conjunction with acid resistant tiles. The flange faces were also protected with a lining of Belzona® 4181 composite additionally covered with Belzona® 4341 coating.


Hechos Belzona:

Application of the Belzona chemical resistant system allowed the column to be protected in its arduous continual service (360days per year). Inspection in June 2008 showed the Belzona to be in perfect condition.


Descripciones de fotografías

  1. The column situation
  2. Installing acid resistant bricks with Belzona® 4181
  3. The completed Belzona® 4181 application
  4. The completed Belzona® 4341 application
Case study pic one


 Case study pic two


 Case study pic three


 Case study pic four


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