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Belzona® Protects Large Collection Tank



Buildings & Structures (BSTR)



Centrifugal Pumps (CEP)


Customer Location:

Chemical park, Germany


Application Date:

December 2010


Application Situation:

Underground collection tank for waste surface water



Breakdown of the original coating had allowed corrosion pitting to occur. some leaks were occurring on the walls, particularly where wall meets the concrete tank floor.



Belzona® 1111 (Super Metal)

Belzona® 5811 (Immersion Grade)

Belzona® 4111 (Magma-Quartz)

Belzona® 2211 (MP Hi-Build Elastomer)



Steel, Concrete


Application Method:

Application was carried out in accordance with Belzona Know-How System Leaflets TCC-1, TCC-5 & TCC-9. After surface preparation, Belzona® 1111 was used to bond reinforcement steel sheets to areas affected by pitting corrosion. Belzona® 4111 was used to repair damaged areas on the concrete tank base. The entire collection tank was coated with Belzona® 5811 applying two coats by airless spray. Lastly, an elastomeric fillet was created by applying Belzona® 2211 where steel walls joined onto the concrete base.


Belzona Facts:

Three years earlier, a test coating had been done with Belzona® 5811. The test coating’s good performance secured the order for the huge tank with a coated area of 1398 m2.


Photographs Description

  1. Pitting corrosion on tank walls
  2. Rebuild and reinforced area with Belzona® 1111 
  3. Spray-applied seond layer of Belzona® 5811 
  4. Completed application
Case study pic one


 Case study pic two


 Case study pic three


 Case study pic four


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