KHIA headerKnow-How in Action

VOL X, NO 20

Belzona® Materials Recondition Air Conditioner



General Industry (GIND)



Heat Exchangers (HEX)


Customer Location:

Property Management Company in South-Eastern U.S.A.


Application Date:

February 1995


Application Situation:

H.V.A.C. tube sheet repair



The tube sheet had suffered erosion/corrosion damage to the extent that three tubes no longer made contact with the sheet.



Belzona® 1311 (Ceramic R-Metal)

Belzona® 1321 (Ceramic S-Metal)



Steel and Copper


Application Method:

Application was carried out in accordance with Belzona Know-How Leaflet HEX-1.


Belzona Facts:

The customers only alternative would have been to remove all the tubes and replace the sheet at a cost of $33,000. The Belzona solution cost less than $1,000.


Photographs Description

  1. Original condition of the tube sheet showing three tubes not in contact with the sheet 
  2. Tube sheet surface being prepared   
  3. The sheet, restored to full working order
Case study pic one


 Case study pic two


 Case study pic three


 Case study pic four


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