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FRP Lining for Concrete Water Storage Tanks

FRP Lining for Concrete Water Storage Tanks

05/02/25
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A complete repair solution for Concrete Water Storage Tanks

SGI Composites delivered specialist FRP (Fibre Reinforced Polymer) lining and repair works to two concrete water storage tanks in Chelsea, London, restoring their integrity and ensuring long-term, leak-resistant performance. Cracked areas within the concrete structures were carefully repaired before the application of a high-performance fibreglass lining system, effectively creating a “tank within a tank” to provide a fully waterproof and durable internal barrier.

The image shows the concrete water storage tank following completion of the waterproof FRP lining system. The seamless finish forms a robust, watertight internal structure, protecting the original tank and ensuring reliable performance for years to come.

Rooftop Installation View

This image shows rooftop access to the two concrete water storage tanks in Chelsea, London, where SGI Composites carried out the fibreglass (FRP) lining works. Despite the challenges of working at height and restricted access, the team successfully installed a seamless, waterproof lining system to both tanks, ensuring long-term protection and reliability.

Internal Repairs to Concrete Tank

Inside the rectangular concrete water storage tank, fibreglass (FRP) repairs were carried out to cracked and damaged areas. These targeted repairs restored the structural integrity of the tank and created a sound substrate for the subsequent FRP lining system, ensuring a durable, watertight finish.

Cost-Effective Surface Restoration

Large areas of missing render can be effectively accommodated within the FRP lining process, with the fibreglass system moulded directly to the existing surface. This approach eliminates the need for costly replacement works, providing a practical, efficient, and durable solution while maintaining a fully sealed, watertight finish.

Completed FRP Lining System

The fibreglass (FRP) lining is now complete, effectively sealing all cracks and creating a seamless, watertight barrier. This economical and hard-wearing solution provides long-term protection against leaks, deterioration, and environmental exposure, ensuring reliable performance for years to come.

Before Lining – Damaged Tank Walls

This image shows the condition of the water storage tank walls prior to lining, with visible damage and deterioration to the concrete surfaces. These areas required careful preparation and repair to restore structural integrity before the application of the FRP lining system.

Completed Waterproof FRP Lining

The waterproof fibreglass (FRP) lining is now complete, effectively sealing all cracks and creating a seamless, watertight barrier. This robust system protects the tank against leakage and deterioration, ensuring long-term, reliable performance.

Completed FRP Lining System

The fibreglass (FRP) lining system was successfully completed in under a week, despite the challenges of restricted access in London’s busy Chelsea area. The result is a seamless, watertight, and durable solution delivered efficiently with minimal disruption to the surrounding environment.