@ Toe Knee, yeah i thought it a bit odd aswell, but it's the only shop arround here who does custom colors in a spraycan.

It's an alloy valvecover, I used epoxy primer special for alloy, to make sure the paint will stick better etc.

After that I used primer coat, so I got a equal color (so it's easier to see if there are little imperfections in the cover and paint. this was very good, and smooth as it should be.

I had some left over paint (waterbase) but haven't got a compressor to paint it with. So I ended up with a bottle and C02 can to spray the paint on.
This time the finish was not very smooth (looks like hammerrite, sort of.)

I sand it down, using waterproof sandpaper and scotch-bright, sprayed again, but no luck.

I used to spray more with cans, without any problems....

Hope this helps a bit.

Cheers,

Martein