Please resize or remove that Preval picture because it has made the text in this thread so small it is nearly impossible to read.

Have you looked into the Preval spray systems? They use a compressed air can, about the size of a butane refill, as a driver to spray the paint, which you mix and is contained in a jar below. Great way to apply automotive catalyzed paints on small jobs if you don't have access to a compressor and spray guns.

OK for a new rust free wheel, not an old with rust.
The reason is the same as the last sentance Neil's post above.

"If you do use paint pour primer + paint into the seams and swish it around. Where the center and hoop meet is where the rust will start first."

Paint can be poured in the seam but it is impossible to get the powder in the center/hoop seam to seal the fresh blasted metal.

When I went from 13" to 14" body color wheels on my '68 Valiant, I sprayed them with a 50/50 mix of satin and gloss black Rustoleum Enamel. The next weekend I scuffed the outside and sprayed it body color.

It didn't change my text size.
Removed for those that did.