Stainless steel is a popular material for sinks because it resists most stains well. For this reason, commercial hair dye equipment, including mixing bowls and rinse tubs, is often made of stainless steel. Over time, however, stainless steel sinks' resistance to dye stains will wear off, and stains may develop on the sink. Prevent this problem by rinsing out the sink as soon as you dye your hair and by never letting dye sit in it for more than a few minutes. Remove the dye with products that won't damage the metal surface, but be aware that you may not be able to completely remove the stains.
Soak up as much of the hair color stain as possible, using a clean cloth. Work until the color no longer transfers to the cloth.
Wet the sink with water.
Sprinkle baking soda over the dye stain.
Scrub the baking soda into the dye stain with a scrubbing brush. Scrub in the direction of the stainless steel grain to prevent scratches. Work until the dye stain is gone or until it is as light as possible.
Mix 3 tablespoons of cream of tartar with 1 tablespoon of hydrogen peroxide.
Blot the solution into the dye stain until it is gone or no longer gets any lighter.
Apply a commercial stainless steel stain remover to the sink with a clean cloth. Rub it into the sink until the stain is gone or until it is as light as possible.
Rinse the sink with clear water.