R.C.L. 70 contains 70% Phosphoric Acid and is a powerful acid cleaner suitable for the cleaning and descaling of surfaces such as stainless steel, steel, brass, copper, ceramic and glass. R.C.L. 70 will remove rust, calcium and lime deposits from food processing equipment found in hotels, breweries and dairies; and restaurant equipment such as hot water urns, bain maries and dishwashing machines.