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Belzona® Prevents H2s Gas From Escaping Wastewater Hatch



Buildings & Structures (BSTR)



Tanks and Chemical Containment Areas (TCC)


Customer Location:

Keswick, ON, Canada


Application Date:

September 2014


Application Situation:

Access hatch to underground vault.



Mid-pump station close to residential housing created excessive H2S gas smell and was a concern to local residents.



Belzona 3121 (MR7)



Concrete and Stainless steel


Application Method:

The application was carried out in accordance with Belzona Know-How System Leaflet TCC-15 for sealing and protecting containment areas. The area was ground using a grinder to prepare the surface. Belzona 3121 was applied using a brush as a two coat system in accordance with Belzona Instructions For Use.


Belzona Facts:

Hatches were sealed to prevent the smell of gas escaping. The waterproof coating will remain flexible and handle both summer and winter weather conditions. Belzona 3121 is a two-component emergency repair and weatherproofing system for the sealing of all types of roof surfaces. This fluid grade material is designed for instant waterproofing and can be applied under most year-round weather conditions.


Photographs Description

  1. Prior to application
  2. Prior to application
  3. Preparation in progress
  4. Completed application
Case study pic one


 Case study pic two


 Case study pic three


 Case study pic four


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