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NO...it's not a bad idea...but: Rather than use the typical aerosol paints, I recommend you consider the Preval unit in the link. It is relatively inexpensive and would permit you to use a high quality, two component, epoxy primer. Since you are going to the trouble of providing a top notch surface preparation by blasting, I think you would be far better off using the two part epoxy than any kind of primer that you can get in a rattle can. For primer, about the best you can get (IMO) is DPLF by PPG. PPG also has an OMNI line that is less expensive. That epoxy would be OMNI MP170. Both of these are two part primers requiring a catalyst. They contain no isocyanates so you don't have to be concerned with that safety issue. Although the DPLF is more expensive on a unit basis, it is available in quarts. As I recall, the MP170 is only available in gallons so you might be better off with the DPLF, even though it is more expensive...that is unless you have more to do than just the rims. Whatever you choose, make sure you prime the rims right after blasting. Immediately would be preferable. Just humidity in the air can begin the rusting process on steel that is in that raw a state. Also if you use the epoxy primer, make sure you topcoat shortly thereafter...3 days maximum for the OMNI and a week maximum for the DPLF. Otherwise, you should scuff sand and reprime. Rod
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