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Sand Filter Lining Repaired With Belzona



Petrochemical (PETR)



Tanks and Chemical Containment Areas (TCC)


Customer Location:

Chemical company, Martorell, Spain


Application Date:

March 2010.


Application Situation:

Ebonite lining in sand filter



The ebonite lining showed severe degradation (cracks, grooves, gasket failure, adhesion problems) due to the corrosive action of the solution (brine 250 gr/Kg, active Cl2 0-20 ppm) at 65ºC.



Belzona® 1111 (Super Metal)

Belzona® 5891 (HT Immersion Grade)





Application Method:

The application was carried out in accordance with Belzona Know-How System Leaflet TCC-3 & 5.


Belzona Facts:

Thanks to the Belzona products, the filter was back in service after a rapid, easy and in situ repair. The cost of replacing ebonite would have been much higher. Belzona enabled a quick in-situ repair to be carried out, ensuring filter could returned to service with minimum disruption to production. Alternative (replacing ebonite) would have taken far longer and at far higher cost


Photographs Description

  1. View of the filter from outside
  2. Degraded area, cracked ebonite
  3. Rebuilding with Belzona® 1111
  4. Ebonite coated with Belzona® 5891
Case study pic one


  Case study pic two


  Case study pic three


  Case study pic four


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