What is the best way to paint over aluminium siding? Should it be primed? What type of prime should be used? What type of paint should be used on this surface? What brush or roller should be used to apply the paint?Two good answers above me, but I do want to add that aluminum siding will chalk on the outside. Definetely needs to be power washed, preferably with TSP (Tri Sodium Phosphate). That will get the metal totally clean to give it good tooth for the prime and paint. As said above, you need an aluminum prime, which is not a problem. Any paint store, Home Depot or Loews in the paint department can lead you to the right prime. Just make sure you are using the corresponding paint for your prime. Anyone can slap on a coat of paint, but when you do the groundwork first, you will have a paint job that will look like new for many years. I hope this helps you.while I\'ve never done it, my brother in law painted their aluminum siding. He used paint he bought at sears- go to a paint store, one that only sells paint and pick their brains. He power washed the house, primed it and used a sprayer to apply both the paint and the primer....the house looks like they replaced the siding.the aluminum has to be washed first with I forget the name of it then it has to be primed with this blue primer that will make the paint stick to it and youcan use a latex paint call the paint dept or store and they can point you in the right direction the blue primer i used came from true value hardware store but i forget what it was calledOther related question