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Aluminium ramen schilderen - Tintrio

How to: paint aluminium windows


Tired of the colours of your window frame? Or has the previous coat of paint become dirty and worn? Then it's time for a facelift! You can also feel free to paint a window frame made of aluminium. 

"But do I need special paint? Which one then? Do I need to sand too, or not?" Not sure how to start painting right away? Then follow the step-by-step plan below and read our tips and tricks. We will answer all your questions and provide you with the appropriate products. 

Want to know how to paint PVC windows? We have a step-by-step plan for that as well! Just like we have one on how to paint wooden windows or how to stain wooden windows.


Painting your aluminium windows indoors

Step 1: preparation


  • Cover the area with tape and masking film

  • Clean and degrease the windows 

  • Lightly sand and dust them

Before you start, shield the edges of the window and surrounding walls with painter's tape. This will prevent paint from getting where you don't want it. If necessary, also use cardboard to protect the floor and masking film to shield the window sill. 

Next, it's cleaning time! Aluminium window frames can be cleaned with water and detergent. If you use detergent, rinse well again with water to avoid residues. 

Lightly roughen the windows with fine sandpaper. This will make the primer and paint adhere better. Make sure you sand evenly and do not skip any spots. 

After sanding, it is important to dust the surface. Use a soft brush or a cloth to remove all dust. This will prevent unevenness in the paint layer.

Step 2: applying multiprimer


  • Use a paint brush and a paint roller 

  • Apply one coat of adhesive primer 

  • Let the primer dry sufficiently

For an aluminium window frame, you need a special water-based adhesion primer, also known as multiprimer. This is a special primer that ensures the paint adheres well to a surface that is not made of wood and has not been painted before. 

If you want to paint over a paint layer that is still intact on your aluminium windows, you obviously don't need that special primer. In that case, you can start the finishing coat directly after cleaning. 

Apply the adhesive primer with a paintbrush along the edges, and with a paint roller to roll the paint over the straight areas. You only need one coat of this to give your windows a protective primer. 

Be sure to let the primer dry completely. Follow the drying times indicated on the paint pot and in the technical data sheet. Make sure the primer is completely dry before moving on to the next step. 

Step 3: lacquering


  • Apply one to two coats of lacquer

  • Remove the tape afterwards

Now that the primer is dry, you can apply one coat of lacquer. For indoors, use a water-based lacquer. With most indoor paints, you can choose a matt, silk gloss or high gloss finish. The choice depends mainly on your personal preference. 

Apply the paint evenly to the window frame, again with a brush and roller. It is best to roll the paint out along the length of the window profile. Again, it is important to let the paint dry sufficiently. 

With aluminium interior windows, you could in fact stop after just one coat. However, we - and a lot of paint manufacturers with us - do recommend a second coat. The extra layer will ensure that your paintwork can withstand scratches better and longer. That means a little extra work, for a much more durable result! 

Finally, remove the masking tape if you have used it. Now your paint job is done and your aluminium windows will look like new again!

Painting your aluminium windows outdoors

To paint your alu windows along the outside, you don't really need to do much else. However, it is best to keep this in mind:

  • For your exterior aluminium windows, you always need at least two finishing coats. If you don't, your paintwork won't last very long. This is because the paint on your exterior windows needs sufficient layer thickness to not wear off too quickly.

  • Is there brick or another rough surface around your windows? Then you will need a special green tape  that has stronger adhesive powers.

  • There is of course a synthetic multi-primer, which you can combine with a solvent-based paint for your exterior aluminium windows. But why make things difficult when they can be easy? You can certainly use the water-based products you use for the inside along the outside too.

Find the right paint for your aluminium windows 

Want to start right away, but don't know what products you need? In our step-by-step plan, we have linked to all paints and supplies. So you can find everything you need to paint your windows beautifully in each step. Below you will also find a list of all the products.

Paint for alu windows

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Sigma Tigron Gloss
Select your colour: Mix colours | Content: 2,5 l
Variants from €47.95 
From €144.45 
New
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Trimetal Permacryl XR Mat
Select your colour: White | Content: 1 l
From €49.95 
View product
New
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Trimetal Permacryl XR Satin
Select your colour: White | Content: 0,5 l
From €22.95 
View product
New
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Trimetal Permacryl XR Brillant
Select your colour: White | Content: 1 l
From €49.95 
View product
New
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Trimetal Permacryl Decor Satin Exterior
Select your colour: White | Content: 1 l
From €33.45 
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Trimetal Permacryl Satin
Select your colour: White | Content: 10 l
Variants from €34.95 
From €272.95 
View product
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Trimetal Permacryl Pu Mat
Select your colour: Mix colours | Content: 0,5 l
Variants from €19.95 
From €22.95 
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Trimetal Permacryl Pu Satin
Select your colour: White | Content: 2,5 l
Variants from €19.95 
From €89.95 
View product
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Trimetal Permacryl PU Satin Spray
Select your colour: White | Content: 2,5 l
From €74.45 
View product
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Trimetal Permacryl Brillant
Select your colour: White | Content: 2,5 l
Variants from €37.45 
From €87.95 

Useful tools

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3M Golden Masking Tape
Size: 24 mm | Quantity: 1 piece
Variants from €6.95 
From €8.95 
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Berdy Clearline - Degreaser
Content: 1 l
From €9.95 
View product
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ProGold Paintbrush Round Classic 7520
Size: 12
Variants from €4.95 
From €6.25 
View product
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Progold Paint Roller Felt
Size: 10 cm | Type: Standard
Variants from €1.75 
From €2.65 
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Progold Sandpaper
Grit: Grit 220 | Quantity: 1 piece
From €1.15 
View product
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3M Green Masking Tape
Size: 24 mm
Variants from €4.45 
From €6.95 
View product

Want to explore all the options yourself? Then you can find extensive info in our paint guide. Including professional recommendations for those who want top-class paintwork.

If you already know what you are looking for, you can browse through our paint for doors and windows category.

View all paint for windows and doors

Need help?

If some of the steps aren't entirely clear to you, or if you are in a specific situation that isn't covered by our how-to guide, then our experts will be happy to help.

Contact us

Ready to start painting? 

In these video's by Levis you can see a professional painter at work, painting aluminium windows indoors and outdoors.