Ian, thanks for the tip. I don't use aluminum much, but when I do I would like a good paint job. I'll try the Strontium Chromate next time.
Simon, I think you'll like the KelGuard paint. You can also spray it, but you will have to thin it. Also, it finishes the curing faster if you let it cure in the sun a few days. Let me know how it turns out. Is anyone else using KelGuard?
maury