Repair of existing coating in cistern

KHIA ID: 9853

Industry: Pulp & Paper (PLPR)
Application: TCC-Tanks and Chemical Containment Areas (TCC)
Substrate: Carbon steel

Customer Location: Middle of Sweden
Application Date: July 2024

Products: Belzona 4181 (AHR Magma-Quartz),Belzona 4911 (Magma TX Conditioner)

Problem: The customer had made a weld in a pressure-classed cistern and needed water to remove all existing coating. After this intervention, they needed to get back to production as soon as possible. We chose to rebuild this with Belzona 4911 and Belzona 4181 given the chemicals in the tank. By choosing these products, we were able to both mould and rebuild everything in one process, then add heat for forced curing, which minimised downtime

Here you can see the outlet and the bottom of the cistern after water jetting

Here we have started filling up and shaping the straight part of the outlet

Here we start to move towards the vertical surfaces and the final shaping of the outlet

Here we can see the finished result.

Application Situation

However, given that this was not planned, the client had no options to repair and rebuild this area in the short time required. By selecting Belzona 4181, we were able to lay both vertical and horizontal surfaces whilst shaping the outlet. This, coupled with the short curing time and chemical resistance, meant that the client chose to go with Belzona

Application Method

We used bucket mixers to mix Belzona 4181. For all forming we chose to use the Belzona mixing plate and mixing bowl, as the material does not easily stain on these surfaces.

Belzona Facts

Here was the saving and the benefits of being able to deliver a solution that allowed the customer to start up in such a short time. All steps could be done in one go, filling, moulding, vertical, horizontal and that it can withstand the chemicals and cure quickly.

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