How to draw on Aluminum

[TomGuycott]

It really depends on the primer you can find, whether it will accept acrylics. If you CAN'T find that kind of primer, look for Enamels. They will work on a lot more than acrylics, and you might not even need a primer (I'd still recommend one though. Unfortunately I don't know what kind of primers work on aluminum and what they'll allow to adhere to it.)

If you need something to sketch on it first, try a Stabilo All Pencil. They're water soluble, write on lots of stuff including metal, and they come in various colors.