ACOTHANE CASE STUDY

Concrete Water Tower

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A full internal refurbishment was carried out to the walls, floor and shaft of the high level tank in this concrete water tower, in 2017.

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After removal of the existing failed asphalt render system, all internal concrete surfaces and pipework were grit blasted to remove all traces of the remaining bitumen primer.

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All concrete surface were then re-levelled using a cementitious fairing coat, and all expansion joints were sealed using a flexible overbanding system.

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After cure of the cementitious render, heating and de-humidification equipment was installed to ensure that the correct application conditions were achieved.

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Acothane DW solvent free polyurethane coating system was chosen as the new waterproof lining material.

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With its regulation 31 approval from the drinking water inspectorate, tough polyurethane finish with a degree of flexibility and 7 day cure, the system was hand applied to all walls, floor , columns and shaft.

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Acothane LV sealer was applied to all surfaces followed by two full coats of Acothane DW to achieve a minimum final thickness of 1mm.

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