KHIA headerKnow-How in Action


Belzona® Repairs And Protects Turbine Rotor



Power (POWR)



Centrifugal Pumps (CEP)


Customer Location:

Hydroelectric Power Plant, Brazil


Application Date:

September 2011


Application Situation:

Turbine rotor.



Wear caused by the effects of erosion and cavitation to the rotor with a waterfall height of 110 meters.



Belzona 1311 (Ceramic R-Metal)

Belzona 2141 (ARC-Fluid Elastomer)

Belzona 2941 (Elastomer SP-Conditioner)



Stainless steel


Application Method:

The application was carried out in accordance with Belzona Know-How System Leaflet CEP-1. The surface was prepared according to the standard NACE 2 (equivalent to SA 2 ½) with dry abrasive blast to near white metal. Belzona 1311 was applied to smooth the wear on the vanes (holes and loss of thickness) and then, Belzona 2141 was partially applied in certain areas of the rotor. Subsequently, Belzona 2141 was applied in 2 coats.


Belzona Facts:

Belzona attended to the customer’s expectation, recovering and protecting the surface of the rotor with a long-lasting solution.


Photographs Description

  1. Worn area of the rotor
  2. Defining the application area
  3. Application under progress
  4. Completed application
Case study pic one


 Case study pic two


 Case study pic three


 Case study pic four


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