Case Study: Sectional Tank Repair for Pigment Manufacturer

Sectional Tank Repair

One of James M Brown's sectional tanks was in a poor state of repair, with several leaks due to corrosion. Tank repair experts Sui Generis were called in and recommended a complete fibreglass repair and lining. This saved the pigment company the cost of installing a new tank and left the sectional tank safe and secure for long-term use.

Off colour

Sui Generis were called in by the world's largest manufacturer of cadmium pigments, James M Brown Ltd. The problem was an old storage tank that was suffering from corrosion and had started to leak. The UK company needed an economical way to repair the tank and repurpose it for a new function instead of taking on the significantly larger cost of replacing it.

After conducting a tank survey free of charge, Sui Generis recommended a complete repair and lining with GRP (fibreglass), which JMB were happy to accept.

Harsh conditions

Normally a tank repair of this kind can be completed within a week, but the work coincided with a severe cold snap, with temperatures remaining below zero. In addition, the tank was elevated on stilts, which made it even colder. Nevertheless, the Sui Generis team was able to complete the whole refurbishment in only nine days.

The interior of the tank was first grit blasted to remove rust and reveal any weaknesses. Having positioned a tarpaulin outside to limit rain water coming in, work began on sealing the holes and reinforcing the areas of weakness with GRP. The whole tank was then given a watertight GRP lining to make it once more suitable for long-term use.

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Industrial Tank Lining Service

 

Completed tank repair with GRP lining to all walls, floors and struts.

1. Completed tank repair with GRP lining to all walls, floors and struts.

Interior of the tank after grit blasting to remove rust and expose weaknesses.

2. Interior of the tank after grit blasting to remove rust and expose weaknesses, with resin primer to walls.

Sectional panels sealed with GRP.

3. Sectional panels sealed with GRP.

Completed tank repair and GRP lining to all walls, floors and struts.

4. Completed: Tank repair and GRP lining to all walls, floors and struts.

Completed view of panels with watertight GRP lining with final coating.

5. Completed: View of panels with watertight GRP lining with final coating.

Completed view of fibreglass lined sectional tank.

6. Completed view of fibreglass lined sectional tank.

Sui Generis tank lining specialists

Braithwaite tank repair with fibreglass liningGrit blasting reveals damage

First, we grit blasted the interior of the tank to take it back to a clean or 'white' steel state. This removes rust, and reveals weaknesses. The panels were then primed with a coat of resin in preparation for the fibreglass lining.

Braithwaite tank repair with fibreglass liningFibreglass lining of tank joints

With a sectional tank, extra care needs to be taken to properly seal the joints between the panels. That's why we used a flexible polyurethane sealant on all the joints, followed by a flexible sealing coat around the tie-bar knuckles to ensure a water-tight seal. This process served to reinforce the joints before we applied a fibreglass lining to the panels.

Braithwaite tank repair with fibreglass liningWater sprinkler tank repair with fibreglass liningLining applied ready for top coat

The panels were then infilled with layers of fibreglass lining. Because the panels did not form a flat or regular surface, it was important to ensure that the layers adhered perfectly into every groove – creating a strong, leak-free surface.

Braithwaite tank repair with fibreglass liningResin coat, prior to final top coat

During the final stage of the tank lining, we applied a resin coat before applying the final top coat. This provided a superior finish and ensured the top coat adhered properly. A grey top coat was then applied, for a secure, good looking finish to bring JMB's tank back into action again, better than ever.

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When you choose Sui Generis to undertake work on your behalf, it always complies with and exceeds the standards required by relevant legislation. We always advise you what the regulations require before we start.

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We take your safety seriously, and that of all our people, whether we're at a small factory or a nuclear plant. We always adhere to stringent health and safety procedures at every stage – and comply with your own Heath and Safety policies.

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