KHIA headerKnow-How in Action

VOL XXVIII, NO 36

Belzona® Saves Corroded Sprinkler Tank By Plate Bonding

 
 

Industry:

General Industry (GIND)

 
 

Application:

Tanks and Chemical Containment Areas (TCC)

 
 

Customer Location:

Industrial Foam Manufacturer, Northamptonshire UK

 
 

Application Date:

December 2013

 
 

Application Situation:

6m diameter x 6m high circular steel panelled tank supplying water 24 hours a day / 7 days a week for the internal fire sprinkler safety system in a large foam product manufacturing plant

 
 

Problem:

Over several years the tank had become badly corroded at the water line around approx. 50% of the circumference, causing it to split open in some areas with water constantly flowing out.

 
 

Products:

Belzona 1161 (Super UW Metal)

Belzona 5831 (ST Barrier)

 

Substrate:

Steel

 
 

Application Method:

Application was carried according to Belzona Know How System Leaflet TCC-1. The tank surface to be re-plated was cleaned and abraded using an MBX Bristle Blaster to create a profile. 36 off steel plates each 400mm long x 300mm high x 3mm thick were bonded in place with Belzona 1161 using 4 x countersunk screws per plate to hold them in place. The ends of the new plates were ground to create a "V" where they butted together, and filled with Belzona 1161 after installtion to seal the joints and bond all the plates together. The plates were then coated with Belzona 5831.

 
 

Belzona Facts:

The sprinkler tank needed to be constantly on line for fire safety and Insurance reasons. Stopping production to remove it and replace it with a new tank was not an option for the customer due to time, space and budget restraints. The Belzona 1161 cold plate bonding method allowed the corroded & split tank to be refurbished to a good condition whilst the tank was still in use. The total Belzona material cost was £3,700, a fraction of the cost to replace the tank. Also the customers water bill was greatly reduced.  

 
 

Photographs Description

  1. Large sprinkler tank with corrosion at water line
  2. Surface being prepared with MBX Bristle Blaster
  3. 36 off 400mm long x 300mm high steel plates being installed using Belzona 1161
  4. Installation of steel plates completed and coated with Belzona 5831
 
Case study pic one

 

 
 Case study pic two

 

 
 Case study pic three

 

 
 Case study pic four

 

 
 
For more information about Belzona visit: www.belzona.com