Can You Paint Aluminum Windows? (Find Out Now!)
Aluminum windows are a modern and sleek way to upgrade your home exterior. This window style looks sharp when they are first installed. Over time, however, they may show age and signs of deterioration as they are constantly exposed to the natural elements.
New windows seem like a great idea, but they come with a hefty price tag. Painting outside aluminum windows sounds like the logical next best thing to new windows, but should you paint them? If so, how do you paint aluminum windows in order to have quality and lasting results?
When you paint aluminum windows you should first inspect surfaces and prepare accordingly. Clean aluminum surfaces and surrounding area as needed. Prepare windows using painters tape on edges and newspaper to cover glass. Wipe aluminum and apply two thin coats of primer or aluminum primer spray. Next, apply two thin coats of acrylic latex paint or its spray paint equivalent to ensure lasting results.
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Inspect the State of The Aluminum
It is certainly possible to paint your aluminum window frames. In order to achieve the best results, it is critical you inspect, clean and prepare your windows thoroughly. This all begins looking closely at the windows and their state of repair.
When you paint aluminum windows it is important to first inspect the windows and surrounding areas. You need to check to see exactly what kind of cleaning is needed before you begin the painting process. Next, you should check the aluminum to ensure it is not rusted through or damaged beyond repair.
Aluminum can take on a chalky or oxidized texture when it is exposed to high UV climates or salty air. If you notice any chalkiness, oxidation or mild rust you need to make sure you scrape and buff that area completely to ensure paint will adhere properly.
Clean Surface
Once you finish inspecting the windows you can move on to the cleaning process. Normally, you should use a microfiber cloth and cleaning solution to wipe surfaces clean and free of debris.
If you notice any chalkiness or rusted areas you will need to scrape them before you begin cleaning. Use a soft sandpaper or mild scraping tool in order to remove rust or other unnatural elements from the aluminum. Once you scrape off whatever has attached itself to the aluminum windows you can safely wipe them down.
When cleaning and wiping each window remember to reach into the corner areas. Be sure to open the window and wipe any areas that are not visible when the window is closed.
Tip: Using Isopropyl alcohol as your cleaning liquid works in two ways. It not only helps rid surfaces of dirt , but it also dries on its own. This leaves you with a dry and clean surface that is ready to be painted.
Remove Stains
Once you wipe the windows, ensure that no stains remain. This is particularly important if you scraped off any rust or other substance that was attached to the window. If you do not remove stains they may be noticeable after you paint the windows. This is particularly important when painting window frames a light color.
Prepare Windows For Paint
Be sure you cover all areas you do not want painted, including the glass windows.
- Use painters tape to ensure professional-looking clean edges.
- Cover all glass using newspaper or other paper covering.
- Also, cover surrounding window areas including the ground and house wherever necessary. This is particularly important when using the spray painting method.
Use A Primer
Primer is an undercoat useful in many household paint jobs. Using primer is particularly crucial when you paint aluminum as it allows the paint to adhere much better than without primer. This initial coat also helps the paint last significantly longer than it would if you did not prime the aluminum first.
Use a metal etching primer when painting aluminum windows. Primer can be painted or sprayed on. It is critical that you apply primer in thin coats regardless of the method you use. You are officially ready to begin painting your aluminum windows once you give the primer time to dry and confirm it is evenly applied.
Tip: If you notice any areas around the window that need caulking, it is best to apply caulk during the priming stage.
Paint The Windows
It is best to use acrylic latex paint when you paint aluminum windows. This type of paint is less likely than other types to bubble or flake over time. You can use the spray paint or brush method when you paint your aluminum windows. Both painting styles can be successful if applied correctly.
Tip: Remember to paint the entire window – if your window opens and closes, part of it may not be exposed at first. Be sure to open the window to get the inner edges of the window that are visible when opened.
Brush Method
- Stir the paint. Some paint takes longer to stir than others. Be sure to read your paint can for specific instructions. Normally you should store paint between two and four minutes.
- Dip the brush in the stirred paint. It is best to use a two or two and a half inch angled paint brush. Be sure to thoroughly remove excess paint from the brush to ensure a thin coat.
- Use long even strokes when you paint the aluminum window. The goal is to paint a thin coat of paint on the entire aluminum surface. If a small area shows through just remember you will paint at least two coats.
Tip: Feather out the paint in corner areas if you notice too much paint in those (or any other) sections.
- Allow ample time for drying between coats. At least two hours is usually safe, but consult your paint can for more specific requirements.
- Apply a minimum of two coats, continuing until aluminum no longer shows through.
Spray Paint Method
When selecting a spray paint, ensure that it is a paint suitable for outdoor aluminum. There are several varieties and brands of spray paint that are made specifically for outdoor metal surfaces.
- Read the spray paint bottle for instructions specific to that paint brand. Shake spray paint accordingly.Â
-  Spray the first coat of paint 6 to 8 inches away from the surface. If you spray too close to the window there can be a thick layer of dripping paint. Spraying too far away may result in a patchy or uneven layer.
-  Allow the first coat of paint to dry. While you wait it is helpful to Inspect the window area for any bare spots.
- Spray a second coat. You can spray up to three coasts of very thin paint if needed. Often two coats is enough for an aluminum window.
Start With The Back Window
It is always a good idea to start with your least visible window first, regardless as to whether you spray paint or brush paint. This way you can have continuously improved results as you progress to more visible windows.
Remove Tape And Inspect
Once you brush or spray on the final coat of paint you should allow it to partially dry. If you wait until the paint is completely dried there is a higher possibility paint will chip as you peel the tape. Once the tape and paper are removed, inspect the painted area. Apply any minor touch ups as needed with a small paint brush.
Related Questions
 What Is The Best Way to Remove Paint From Window Glass?
There are several ways to remove spray paint from glass. The most popular tool used to remove paint from glass is a razor blade. Carefully scrape the glass with a razor blade at a 45 degree angle and any access paint should easily scrape off. It is critical you do not scrape too quickly or at a sharp angle as you can scratch the glass.
Should I Paint Aluminum If It Is Rusted?
If you notice your aluminum window is rusted you should investigate the metal further before painting. You can safely paint your aluminum windows if there is only mild surface rust and the aluminum is not deteriorating. Be sure to scrape off the mild rust buildup and clean the area before you begin painting.
How Often Should I Replace My Aluminum Windows?
Your aluminum windows should be replaced every 20 to 30 years. Be sure to see if your windows are under warranty before you replace them. Window companies often provide a long standing warranty when it comes to aluminum or vinyl windows.
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Summing It Up
Painting aluminum windows is not only possible, but it is a great way to give your exterior a facelift. This inexpensive home improvement is done using spray paint or brush paint. Regardless of the method you use it is important to do all necessary prep work.
You can have professional looking and long-lasting results when you properly prepare the area. Your windows can look significantly improved for years to come if you take your time and apply several thin coats of the proper paint.
Tom Gaffey is an expert writer who currently resides in Washington D.C. Tom has a passion for real estate and home improvement writing, as well as travel and lifestyle writing. He lived the last twelve years in Hawaii where he worked closely with luxury resorts and event planners, mastering his knowledge of aesthetics and luxury products. This is where he found his passion for home improvement and a keen interest in DIY projects. Currently, Tom resides in Washington D.C, and also working on his debut fiction novel.
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