Painting a frame

Hey guys/girls

Just wondering if anyone know, I am painting my ZX7r and it has an aluminum frame and I want to paint it black. I was wondering if anyone has painted their own frame and if they have can they make some recommendations. I was wondering if you needed some special sort of undercoat for painting on aluminum or if I have to prepare the aluminum in any particular way.

Thanks in advance
Terry

I always use "super etch" undercoat when painting ally.
But there are vastly more experienced painters around here

Etch then 2pak

Not really any different that painting mild steel.
Land Rovers have had alloy panels for the past 30 years.
As long as its spotless clean & rubbed with a scouring pad to help the (alloy) etch primmer grab a hold.
Then 2 pack as robracer said.
Its got to be CLEAN, none of that oxidisation that old alloy gets around the welds & stuff.

Thanks guys, still tossing up if I should do it or not. I'm thinking all black frame, hugger and wheels and k green fairings with k green wheel strips.