Jewellery concentrate is an aqueous, highly concentrated solution containing strong ammonia, non–ionic and anionic surfactants and EDTA. It is ideal for cleaning watchcases, gold, bracelets, brass fittings, ormolu and, of course jewellery.  When used in an ultrasonic cleaner, it will quickly and effectively remove dirt, grease, tarnish, jewellers rouge and other polishing compounds from gold and other base metals as well as light tarnish from silver. Supplied in 1 litre and 5 litre containers. Dilute 1 part of the concentrate with 8 parts of clean water.