i don't know about success, but i once stripped a black post in my bath using caustic soda
How did it look afterwards? And how long did you leave it in there so as not to strip it away to non existence?
it looked ok iirc. i left it for maybe 5 mins? less? i think i kept an eye on it and jumped in when i felt it was necessary. i wouldn't have done the same to a nice post, FYI.
@PhilDAS started
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i don't know about success, but i once stripped a black post in my bath using caustic soda