Mufflers cleaned up like new

[Datman]

I thought I was destined to have blue/tan exhaust until I tried autosol bluing remover. It is a miracle compound. Below is an after/before comparison.
I also bought the polish. Probably didn't need it but I got it.

I used a slightly damp, not wet, wash cloth and worked a small area at a time. I tried a very fine scouring pad but that left scratch marks. I rubbed the area for 1-2 minutes then liberally rinsed it off with water, dried, and worked the same area again until there were no marks left. I am amazed. I couldn't find the product any place except the autosol website.

I tried another suggestion first, white diamond metal polish, but it didn't touch the discoloration. Autosol has hydrochloric acid as the active ingredient. Use gloves when applying.

https://www.autosol.com/Bluing_Remover_p/1290.htm
https://www.autosol.com/product_p/1734.htm

 

[Andrew Shadow]

Nice job- looks like new.

When you run out of the Autosol another option that many people use is a cleaner called Bar Keeper's Friend. It is much more widely available so easier to find and cheaper.
I have never used it but everyone reports good results with it. One tip that Dave (@dduelin) gave was to add enough water to make a mixture that is just liquidy enough to flow. This mixture can then be poured in to the small crevices and inaccessible spots behind brackets that you can't get to with a cloth. Let it sit there for a few minutes and then rinse it off.

 

[Obo]

Bar Keeper's Friend comes as a liquid cream or a dry powder. You can get it in Canada at the Dollarama & Canadian Tire




I've only used the liquid cream.

 

[dduelin]

Nice job- looks like new.

When you run out of the Autosol another option that many people use is a cleaner called Bar Keeper's Friend. It is much more widely available so easier to find and cheaper.
I have never used it but everyone reports good results with it. One tip that Dave (@dduelin) gave was to add enough water to make a mixture that is just liquidy enough to flow. This mixture can then be poured in to the small crevices and inaccessible spots behind brackets that you can't get to with a cloth. Let it sit there for a few minutes and then rinse it off.

Yes, mix it to make a paste that sticks to the surface or item being passivated.