Yes, you can, but you will get VERY similar results by using a cheap can of caliper paint ($5 vs. $50). You REALLY need to sand the "hat" of rotor well. I also painted the area above the vanes for my Integra. I painted everything silver as to not look to ricey, but to clean up things so they didnt continue to rust.
Also, I have to mention that the paint on the calipers and rotor "hat" (not actually a two piece) is holding up well, but the paint on the vanes of the rotor is pretty much gone. It all came off during a 4 hour track session I had a few weeks after. Not too surprising considering my brakes are VERY hot and I use very abrasive racing brake pads.
I have some pictures at home that I can upload tonight.
Good luck.