ACOTHANE CASE STUDY

Underground Service Reservoir

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This underground concrete drinking water storage reservoir underwent a full Internal and External refurbishment in 2016.

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Acothane DW was chosen as the preferred new waterproofing and protective coating system for the internal concrete walls, floor and columns, due to its drinking water approval under regulation 31 of the drinking water inspectorate, solvent free technology and its tough polyurethane flexible finish.

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After surface preparation all concrete surfaces received a cementitious levelling mortar, to provide a consistent and blowhole free surface for the subsequent coatings, and all expansion joints and movement cracks were sealed with a joint overbanding system.

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After cure of the levelling mortar, heating and de-humidification equipment was installed to ensure that the correct application conditions were achieved within the reservoir.

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All surfaces were then sealed using Acothane LV sealer, followed by a first coat of Acothane DW cream at 0.5 mm minimum thickness, followed with a second coat of Acothane DW blue at 0.5 mm minimum thickness to achieve a final 1 mm minimum thickness.

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