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Belzona® Cruise Ship Centrifugal Pump



Marine (MRNE)



Centrifugal Pumps (CEP)


Customer Location:

Italian Cruise Ship in a Southern California Shipyard, U.S.A.


Application Date:

December 1996


Application Situation:

Main circulating water centrifugal pump



Severe erosion/corrosion damage, evidenced by more than a dozen small holes, and one large hole completely through the casing as well as a loss of up to two inches of the cutwater. The wear ring seats were also eroded in the same area.



Belzona® 1311 (Ceramic R-Metal)

Belzona® 9411 (Release Agent)





Application Method:

Application was carried out in accordance with modified versions of Belzona Know-How Leaflets CEP-1, CEP-2, and CEP-6.


Belzona Facts:

The ship was in process of being sold and without this quick repair (completed over a weekend), the multi-million dollar sale would have been cancelled. Replacement costs were approximately $10,000, with extensive downtime.


Photographs Description

  1. The pump casing and cutwater after blasting and fitting with expanded metal mesh. Note the hole at the center of the cutwater.  
  2. Belzona® 1311 (Ceramic R-Metal) being pressed through the mesh and into the surface profile of the bronze.  
  3. The finished application. Repaired cutwater edge and casing holes. The seal area and rebuilt seating groove is on the right.
Case study pic one


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 Case study pic four


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