Re-paint Aluminium Outdoor Furniture

Hi, I have an aluminium outdoor table, but some of its surface coating have been pilled off. I would like to use black paint to re-paint the whole table, at the same time, to cover up the pilled off areas. I consider to use Spray Paint. I have two questions:

1) Do I have to do any preparation work before I re-paint it?
2) What kind of Spray Paint that I need for this purpose?

Hope some paint/repair pro can give me some advice.

I have attached a photo showing the pilled off paint area for your reference.

Thank you.

 

After vigorously cleaning and a light sanding where needed, I've had excellent results using Rustoleum Gloss. In my case, spray was not appropriate so a brush was used. From the pic it appears that you could use spray.

 

Hi DFBonnett, is sanding an important procedure that cannot skip?

 

Up to you. You might want to sand where it peeled to feather the edges out a bit.