How to check weld penetration. Acids,Bluing,Rusting, What works? My research revealed

[I_Love_Plasma]

Thanks for the suggestions. I think I might try finding some Ferric Chloride. As far as Hydrochloric acid goes; I have the strongest commercial concentration available. It's 36% Hydrochloric, 61% Muriatic, and 3% water, if the label is correct.

My process only took 30 minutes, and soon I will be trying just grinding it smooth and not sanding/buffing it to a mirror finish. HAHA I should have taken a picture before, it looked like a piece of a SS exhaust tip.


ILP