Quote Originally Posted by r0bsk1 View Post
Use an enamel paint. It doesnt need a primer. I use it to restore motorbike wheels and the finish is ace!
Not strictly speaking true problem is that you run the risk of the steel rusting under the enamel so although the finish looks good just now over time you may start to see blisters appear. To be honest I would probably look at buying a brush on primer rather than spray cans, your going to waste a lot of paint the size & shape these are. Brush on undercoat with a decent brush will be just as quick & will leave a suitable finish for what ever top coat you decide on. You can still buy it at a local motor factors or auto paint suppliers.