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A Good Night With Belzona



Buildings & Structures (BSTR)



Gaskets, Seals and Shims (GSS)


Customer Location:

Local municipality, Slovenia


Application Date:

July 2007


Application Situation:

Sewage manhole on the local street.



Manholes on the street were causing a lot of noise due to uneven cover seat. Local people call them "Singing Covers".



Belzona® 1111 (Super Metal)


Cast iron


Application Method:

The manhole seats were roughened and then degreased. Cover plate ends were protected with Duct tape and Belzona® 9411. Belzona® 1111 was used to rebuild the manhole cover seat in accordance with Belzona Know-How System Leaflet GSS-8.


Belzona Facts:

Belzona® 1111 made a cost effective solution and a perfect fit of the manhole cover in its seat eliminating noise. Conventional replacement method takes time, a lot of work and different material (asphalt, reinforced concrete). The cost savings by using Belzona technology is about 200,00 EUR per manhole.


Photographs Description

  1. Manhole
  2. Applying Duct tape and Belzona® 9411
  3. Rebuilding manhole cover seat with Belzona® 1111
  4. Manhole in place and position marked
Case study pic one


 Case study pic two


 Case study pic three


 Case study pic four


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