One thing may be a problem, If you have any type of wax or grease on the surface of the chrome, it will not allow the acid to get to the chrome.
It should turn black and disinigrate off slowely. It wont flake off.
Try heating your acid in a glass pot. Be really careful not to breath the fumes.
I heat my muratic/water mix and the chrome comes off almost instantly. It will fiz and when the fizing stops...chrome is gone!
Dont do this with potmetal parts though.
48 Buick
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