Nickel is a popular metal used for both consumer and industrial products, including furniture, batteries, tools and instruments. It has a silver color that resembles aluminum, chrome or steel. Like most metals, nickel can rust when exposed to excessive water or moisture for long time periods. Treating the nickel-covered object at the first sign of rust is important in preventing the spread of the rust.
Scrub off rust stains with a scrubbing pad or steel wool. If the rust remains, use a paper towel or scrubbing pad to apply mineral oil to the rust stains. Allow the rust to absorb the mineral oil. After several minutes, scrub the rust stains again. Wipe clean with a cloth.
Apply white vinegar to the object with a paper towel. For larger areas, use a spray bottle. Let the vinegar soak into the rust for 10 to 15 minutes. Scrub the rust away with a scrubbing pad or steel wool pad.
Mix one part vinegar to two parts salt to make a paste. Apply the paste to the nickel using a scrubbing pad. Wait several minutes, then scrub at the rust stains. Repeat, if necessary. Use a cloth to wipe the nickel clean.
Apply naval jelly for stubborn rust stains. Wear work gloves and a face mask for protection against the phosphoric acid in naval jelly. Apply the gel-like substance to the nickel's rust stains with a paper towel or scrubbing pad. Wait several minutes, then wipe clean.