Wirelessly posted (Box Smasher)
Awesome post. I need to do this to my 1527 trem. I may try 1 M aqua regia (50/50 mol frac HCl and HNO3), since I can prepare that in my lab. It may remove the cosmos black finish though (which is already half gone).
You know what, when I used the phosphoric acid solution, I tested it on cosmo black lock nut pads and it didn't affect them at all thankfully so I'm gonna stick to that as I'm not at your level when it comes to the science side of things and finding alternatives. Feel free to suggest anything else that may be worth trying that us peons could obtain.