How To Paint Chalky Aluminum Siding

Use it on the siding and you may find that using this sands down to the bare metal which would be the ultimate prep job.

How to paint chalky aluminum siding.

Expect to pay the premium for good paint. If your siding is horizontal paint left to right. This oxidation that occurs on aluminum siding results in the build up of a chalk like substance on the siding itself which can easily be seen by wiping your hand across the aluminum. This ensures even coats and will prevent you from missing any spots.

Sand down the siding with 150 grit sandpaper before you apply the primer or the paint. All of the chalkiness must be washed and scrubbed off and any flaking paint removed. Then follow up by two coats of acrylic topcoat paint. Check the label to be sure it s recommended for metal siding.

Apply one coat of acrylic primer. In a nutshell you need to start with a clean palette. Once everything is clean and dry you re ready to apply your primer. If the paint no longer feels tacky or sticky it s completely dried.

The key to painting aluminum siding is preparation and priming. The key to painting aluminum siding is to get it really clean and to use 100 percent acrylic latex paint. As a rule of thumb paint takes two hours to dry. The best way to get this siding clean is to power wash it.

If vertical paint up to down. This is called chalking and it means your siding will need a primer. However you may find this too time consuming so cleaning with a pressure washer will likely work well enough to get ready to paint. If you have put latex paint over the aluminum in the past and it is peeling or flaking you will need to scrape the peeling paint away before applying new paint.

Here s where a lot of people make a mistake. To test the dryness of your paint touch the siding with your finger in an inconspicuous area. Or you could wash it by hand with tsp or a similar product available at home centers and paint stores and rinse it thoroughly. This substance if not removed will affect how well the paint can adhere to the siding.

After your siding dries.