Although passivation will occur spontaneously in the presence of oxygen it can be enhanced with the use of chemical treatments.
Removing oxidation from stainless steel.
If you scratch stainless steel with steel wool or leave it soaking in water for too long you can remove the chromium oxide layer and let in rust.
50 by volume hydrochloric acid will quickly remove the black oxide coating.
Spray the infected surface with clean water and make sure to wipe it clean with a cloth.
See the steps below and the full post here.
Rinse the larger surface area be it the basin of your sink or a section of your stainless steel counters thoroughly to remove any debris and dampen the surface.
Cleaners containing oxalic acid such as bar keepers friend soft cleanser or zud cream cleanser will remove rust.
Wait 1 minute then rub it in the direction of the grain.
Passivation is the selective oxidation of a stainless steel surface which removes iron and enhances the chromium oxide content of the surface thereby creating a shell against corrosion.
The black oxide coating can simply removed by cleaning off any rust preventive present and placing the parts in an acid pickle.
Remove rust stains from tools with diesel.
Pour it into a can and place the rusty tool such as stuck pliers screwed items etc in it for a day.
Remove the soaking tool from the can.
Pour the coke on.
Silcolloy and dursan coatings are both applied to improve the corrosion resistance of stainless steel and other alloys.
Many stains will be lifted from stainless steel by the action of steam vapor.
Grab coke and tin foil step 2.
Brush if needed using a brass brush from dollar stores size of a toothbrush.
Read more about corrosion solutions.
Using a ratio of 1 1 mix the white distilled vinegar with water and spray that mixture all over the rust infected surface.
Get a liter of diesel actual diesel not the fuel additive pictured.
Make sure to use the liquid product not the dry one which contains grit that could scratch and damage the stainless steel finish apply the product with a damp sponge.
Rinse the surface with water.
Mix white distilled vinegar with water.