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Belzona® Repairs And Enhances Concrete Clarifier Troughs



Water / Wastewater (WATR)



Tanks and Chemical Containment Areas (TCC)


Customer Location:

Wastewater treatment plant in Plantation, Florida USA


Application Date:

May 1999


Application Situation:

80-ft diameter concrete clarifier trough.



An old coal tar epoxy system had failed and resulted in damage to the underlying concrete. It also made it very difficult to keep the trough clean and free from algae buildup.



Belzona® 4111 (Magma Quartz)

Belzona® 5811 (Immersion Grade)



Concrete and steel


Application Method:

The application was carried out in accordance with Belzona Know-How System Leaflets TCC-9 and TCC-15.


Belzona Facts:

Belzona was specified by an engineering firm called CDM. A total of four-clarifiers were repaired at this facility. The management believes that the Belzona System makes it easier to clean and protects the trough substrate. Over three-years later, the Belzona is still providing excellent protection.


Photographs Description

  1. Clarifier drained to affect repairs
  2. Concrete damage from failure of coal tar epoxy system
  3. Application of second coat of Belzona® 5811 (Immersion Grade)
  4. Finished application.
Case study pic one


 Case study pic two


 Case study pic three


 Case study pic four


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