"I've never heard of someone deliberately removing cad-plating..... "

Way back when, in the custom bike business, some of our customers could only get a particular part in some ****ty color. Under the red or yellow was always plain metal color. Oven cleaner worked great. We didn't have any kind of blaster.

__________________
2009 E320 Bluetec 117,000
1995 E300D 306,000 Sold
1996 Ford Taurus LX 130,000 Sold
1985 300TD Still 225,000 Sold
2016 Ford Fusion 24,900