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Belzona® Revives 'Moth-Balled' Power Plant



Power (POWR)



Heat Exchangers (HEX)


Customer Location:

Power plant in southern California, U.S.A.


Application Date:

May 2000


Application Situation:

A corroded 70-year-old cast iron water box.



The power plant was sold under California's power industry de-regulation and was scheduled to be dismantled. The current energy crisis caused it to be called back on line, however, the water box for two of the units was severely corroded on the inside.



Belzona® 1121 (Super XL-Metal)

Belzona® 5811 (Immersion Grade)

Belzona® 2211 (MP Hi-Build Elastomer)



Cast iron


Application Method:

The application was carried out in accordance with Belzona Know-How System Leaflets HEX-2, HEX-3 and HEX-5.


Belzona Facts:

The plant could not run without a `new' water box. The only other solution was to literally replace the whole box and tube bundle.This would have taken six months and cost over $3 million. The Belzona Solution allowed the utility to begin producing power for the lucrative market within days. Exterior condensation problems have also been solved.


Photographs Description

  1. View of severe corrosion on the interior
  2. Rebuilding with nearly 1/8" of Belzona® 1121 over the entire surface of about 2,500 square feet
  3. Coating with Belzona® 5811
  4. Sealing edges of box to tube sheet with Belzona® 2211
Case study pic one


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