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Belzona® Resolves The Rusty Flange Face



Local Authorities & Municipalities (LOMU)



Centrifugal Pumps (CEP)


Customer Location:

Spokane Valley, WA, USA


Application Date:

October 2014


Application Situation:

Flange face on a pump mounted on a firetruck.



The firetruck pump sits for periods of time without being used. During this time, water sits against the flange face resulting in rust and a poor surface for the o-ring seal to sit against. This results in a lot of leaking water when the pump gets used.



Belzona 1341 (Supermetalglide)





Application Method:

The application was carried out in accordance with a modified Belzoa Know-How System Leaflet CEP-10. The surface was prepared with MBX Bristle Blaster. Then the first coat was brushed on as usual. The second coat was brushed on and then a 3/4" rigid plastic former was bolted against the face to form a solid, smooth, clean surface.


Belzona Facts:

When this flange rusts and begins to leak, the pump has to be taken apart, the flange removed and machined, then re-assembled. This uses both man hours and resources on a regular basis. The amount of Belzona 1341 that was used here was maybe $10.00 USD and will outlast the original method. Good small jobs lead to bigger ones down the road. 


Photographs Description

  1. Machined flange face
  2. Opposing flange face with seal
  3. Surface prepared with MBX Bristle Blaster
  4. Completed application of Belzona 1341
Case study pic one


 Case study pic two


 Case study pic three


 Case study pic four


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