Case Study - Effluent Tanks
Client: Manufacturing Company
Project Brief: The Internal Relining of 3 No. Cylindrical, Steel, Waste Water Vessels
System Specification: Solvent Free Polyurethane
COVAC Contract Ref: 852
3no. cylindrical vessels, each constructed of steel, lined with a glass coated product internally and externally and positioned onto a concrete base, which forms the internal floor surface.
Draining and removal of the remaining water and sludge.
The internal surfaces of the vessel having been completely drained of water but prior to preparation work commencing.
The tank was sheeted off before grit blasting preparation commenced to help protect the surrounding area from contamination and inclement weather conditions.
The failed jointing compound was removed by COVAC operatives and the floor was prepared by COVAC Operatives in accordance with ISO 8501-1:2007.
After preparation, new polyurethane mastic was then applied between the walls and floor area and after curing, Clear Sealer was applied to the concrete floor.
The substrates having receive the 1st full coat of Solvent Free Polyurethane.
The following images show the final application of the 2nd coat of Polyurethane Solvent Free coating (grey).
Small areas where ladders etc. had been placed were manually snagged after coating was sufficiently cured to stand on.
Tank fully relined and returned to service.
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