KHIA headerKnow-How in Action


Belzona® Strengthens Refuge On Offshore Platform



Oil & Gas (OILG)



Gaskets, Seals and Shims (GSS)


Customer Location:

Gas platform, Southern North Sea, UK


Application Date:

February 2013


Application Situation:

Roof of refuge used in case of accident.



Severe corrosion had caused pitting with some penetrations through the roof reducing the integrity of the refuge. refuge had to withstand a blast load of 0.25 bar. As this is an active gas storage unit welding was not an option for repairs.



Belzona 4111 (Magma Quartz)





Application Method:

Application was carried out in accordance with a modified Belzona Know-How System GSS-9. A slurry mix of Belzona 4111 was used to bed steel doubler plates to cover the roof of the refuge. Penetrations through the roof were initially sealed with small plates bonded in place with Belzona 1211. A fire protection coating was finally applied to provide the required fire rating.


Belzona Facts:

All safety factors were considered during the design of this repair which was carried out without the need for hot work. Access to several areas of the roof were limited to 500mm head room, so ease of application of the Belzona system was very important.


Photographs Description

1. General view of the roof 2. Positioning doubler plate onto Belzona 4111 3. Plates bonded where access was restricted 4. Completed application

Case study pic one


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