I've seen the aforementioned metal polish crop up in a good few RB posts thanks to the wonders it works on tired old bike components.
In another sphere altogether, we use it in the labs at work to clean the delicate stainless steel parts used in the ion optics of mass spectrometers! It's the best thing for the job (the alternatives are too harsh and cause surface pitting which leads to poor analysis results), and despite only costing about 4 quid a tube helps keep £7500 or so worth of instrument in peak* condition!
David
*No mass spectrometry pun intended
In another sphere altogether, we use it in the labs at work to clean the delicate stainless steel parts used in the ion optics of mass spectrometers! It's the best thing for the job (the alternatives are too harsh and cause surface pitting which leads to poor analysis results), and despite only costing about 4 quid a tube helps keep £7500 or so worth of instrument in peak* condition!

David
*No mass spectrometry pun intended
