What is the best way to paint aluminum siding? What is the best way to paint aluminum siding?
The best way to paint aluminum siding is using the same techniques that you use to paint a good enamel. First, prepare the surface by cleaning it with some vinegar and water (glacial acetic acid) to clean things up. Next, take a piece of light steel wool and roughen up the surface – you can also use a very small hand sander with light pressure and lightweight sandpaper. Next, using a good aluminum primer, lay down a first coat and wait for it to dry and then lay down a second coat, using a good sprayer. Finally, when the topcoat is dry, repaint the aluminum the color you want, using the finish you want to use.