How To Remove Rust Stains From Countertops. You can use baking soda and water to make a thick paste and apply it to the rusted area leaving it for at least 24 hours. Apply one drop with a cotton swab right on the stain.
Dampen a cloth with a solution of mild dish soap or a non-window ammonia-based cleaner. If the tip of the new cotton swab goes from white to brown then you know. Ive seen stains go from light yellow to deep purple with the wrong chemical says Hueston.
Wipe down the stained surface in a circular motion until the stain is removed.
This has a mild bleaching effect so test it on a hidden spot before using on colored surfaces. Thoroughly rinse the area and dry completely with a clean cloth. You can use baking soda and water to make a thick paste and apply it to the rusted area leaving it for at least 24 hours. At the end of the waiting period take a clean cotton swab and try to suck up the droplet of acid you put on the counter.
