How to take the coating off a Milodon oil pan

Yea, I've found the cad plating on Milodon products is pretty lousy. I was cleaning oil leaks off of my pan with basic mineral spirits and it started wiping the cad off. Hit it in another spot with brake clean and whoosh, cad was gone. Bummed me out as I wanted to leave the cad on it, but with a few bare spots, felt I had to paint it to keep it from rusting. Last time I had it off and was wiping down things in the interior, I noticed the plating was getting thin when wiped and having nothing more than oil having been in it.
I was surprised that Evaporust took it right off like that. I wonder how much of that coating dissolves into the oil and just circulates around the engine?

I didn't even think to try mineral spirits, but that makes sense. I wonder if that's a different process chemically than the Evaporust.

I'd love to know if there's a chemist on the board. Someone who could say if one is stripping it off and the other is chemically bonding to it and removing it. Like if there's different chemical processes at work.

I wouldn't buy one of thse pans brand new after this, but I got this one used at a good price and it looks like it just sat on a shelf for years.