Take a small grain of oxalic acid and put it on the rust stain, add a few drops of warm water, rub it lightly, and then wash it off with water
If there is fresh lemon, squeeze out its juice and rub it on the rust stain, repeat several times until the rust stain is removed, then wash it with soapy water.
Wipe the rust with 10% acetic acid solution, or soak the stained part in acetic acid solution, and rinse with water the next day.
Wet the rust stain with 10% lemon solution or 10% oxalic acid solution, then soak it in concentrated salt water, wash and rinse the next day.
Soak it in the rice-washing water that has been standing for a few days for a few hours and then wash it! After removing the rust, be sure to apply a thin layer of oil or Vaseline to the surface. This will preserve the results after rust removal. For more common sense about buttons, you can pay attention to our official website Shenzhen Litongda Garment Accessories
