#28417, "RE: zinc vs. cadmium coated rotors??" In response to In response to 2 Dec-09-05 06:23 AM by mcgyvr
typically cadmium is better than zinc as far as corrosion properties. But of course that always depends on more specifics of the actually plating/process/thickness used to plate.
It could be .001 thick cadmium vs .004 thick zinc,etc...