Section Code 5021 : Petroleum or asphaltic bitumen, NOT coal tar bitumen. Materials containing petroleum or asphaltic bitumen are not approved for use on water-retaining structures with large surface:volume ratio such as lining of pipes, cisterns or water storage tanks in contact with wholesome water, but may be acceptable for use where there is only a small surface area in contact with the water – e.g. taps, valves and pipe connectors.
Back To Directory Sections'Tuffkote Bituminous coating'. Factory applied, grey coloured, two-component crude oil bitumen coating. Mix in a 17.1:2.9 volume ratio and apply as per manufacturer's data sheet 'SPL/PMG/2019100166', 'Rev 2', dated '04/2024'. Cure for 7 days@30°C. For use with water up to 23°C. This material is only approved for the mixing and curing conditions that appear on the approval. If the mixing and/or curing conditions are varied from those specified on the approval then the materials are not covered by the scope of the approval.
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