KHIA headerKnow-How in Action


Belzona® Refurbishes Raw Water Strainer



Power (POWR)



Wall Problem Areas (WPA)


Customer Location:

Power Plant, Missouri


Application Date:

Summer, 2010


Application Situation:

Housing of raw water strainer.



The existing coating had completely failed allowing severe pitting within the housing to occur. The customer was concerned not to allow further loss of wall thickness.



Belzona® 1311 ( Ceramic R Metal )

Belzona® 1321 ( Ceramic S Metal )



Cast iron


Application Method:

The application was carried out in accordance with Belzona Know-How System Leaflets VPF-1 & 2. The substrate was first prepared using needle guns to remove scale and remaining coating. This exposed more pitting that the customer could not previously see. The substrate was then grit blasted before Belzona® 1311 was used to fill in pitting and smooth out the entire surface. Finally two coats of  Belzona® 1321 were applied.


Belzona Facts:

Replacement cost was near $20k. The repair was completed for approximately $3k in product. Cost saving was an estimated $17k, not including downtime. The job was completed in one shift.


Photographs Description

  1. The strainer housing
  2. Deep corrosion pitting clearly evident
  3. Completed application


Case study pic one


 Case study pic two


 Case study pic three




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