Mine are stock rims - the original ones that came with the truck. They were in poor condition when I bought it. Pulled the tires and took them to the local gravestone dealer for blasting (apparently they cut the letters into the headstones with some kind of special grit).
On days when business is slow - you know, when not many people go to meet their maker - the two blasting guys just hang around the shop. So they're happy to do side jobs. Better to get even a little money than nothing - I think they asked $5 per rim.
That was for both the inboard and outboard faces - and in the wells as needed. The "well" of a rim is that surface under the tire that runs from flange to flange. I had to look that up.
After they were taken down to white metal, I brought them home and quickly applied a light coat of Rustoleum's Rust Reformer to all surfaces. That was just to prevent any rust bloom - in case I didn't get right to them.
The finish coating is another Rustoleum product called Appliance Epoxy Enamel. The stuff is awesome. It goes on and lays down beautifully. It does take your full attention if you want to get a good finished product. In light of that, just one rim was done at a time. Two coats - one light and one medium - filled any profile created by the blasting grit.
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When the epoxy is fully dry, it is as smooth and hard as a porcelain sink. Air dried for two days. And then, each night for four nights (after my wife went to bed), they went into the oven. Baked them low (200F) for 2 hours to prevent any remaining VOC's from bubbling out.
When it was safe to bring the temp up, I took a chance and went to 300F. They stayed in the oven until morning - before my wife woke up and found a giant rim in the oven. I don't tell her anything. I figure it's easier to apologize than to ask permission.
I got them all baked out in 4 nights. Reinstalled the OEM brass valve stems and then had the rubber remounted and balanced. That was over five years ago and I took this picture recently - they still look like right out of the factory:
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