Acetone is an organic solvent usually used in paint thinners and nail polish removers. It can also be use to clean grease stains, finger prints and oil marks on stainless steel. Before using acetone, open the windows and doors to allow for more air circulation. Whenever you are cleaning stainless steel, always rub in the direction of the grain or polish.
Wet a soft sponge or rag with the acetone.
Rub the spot in which you are cleaning (always in the direction of the grain).
Dip and wring out a second rag into soapy water (with dish soap) and clean over the spot you just cleaned with the acetone.
Rinse the rag in clean water and go over the spot again to rinse.
Dry the stainless steel with a clean rag.