foil is one method although not very efficient.The video shows a really light coat of rust. There are much easier and better ways of removing rust,Especially that really light stuff
If you read the can of Coke it contains Phosphoric Acid. So why mess with a sticky sugar camel colored soft drink to clean chrome? I've used Chrome Polish from Turtle Wax and foil together an it works okay.The acid in Coca Cola works well too. Has any one used OA with foil?
I appreciate the technical expertise.I tried the foil method and did not like it as much as bronze wool and WD40 for mechanical removal of rust. For chemical removal, I like Evaporust (first choice) or Oxalic Acid (also works, but a little trickier to use). Be careful about using aluminum foil with any polish or chemical that has ammonia in it.