Aluminum generally does not need to be painted. Unlike iron and steel, it does not rust in contact with air and humidity. But sometimes a layer of aluminum oxide can form on the surface of your objects. Therefore, in some situations, it may be useful to paint the aluminum.
Painting on aluminum can seem like a difficult exercise. It is not so when one proceeds with method and application. The first principle is to use the right paint. The second principle is to make sure that it will hold well – and this involves applying an undercoat. And the last principle is to move forward step by step by following the different key stages.
What paint should I use to paint aluminum?
It is possible to paint on PVC so why not paint aluminum after all? Would you like to repaint your gate or just a door? It is quite possible if you choose the right paint. Before, only Glycero paints had sufficient covering power and could paint aluminum. Today, some acrylic paints make this task possible. Read what is written on your cans of paint and seek advice if necessary from professionals or salespeople in DIY stores. If you want to paint the aluminum of your boat, your motorcycle or the car you are restoring, you may need to go to a professional.
How do you stick paint on aluminum?
The paint will adhere all the better if your support is perfectly clean. The preparation of the object you are going to paint is essential. We advise you to apply a special aluminum undercoat before painting. This will prevent rust and ensure the durability of the paint.
How do I paint on aluminum?
Before you even start, wear gloves and a mask to ensure your safety. Work on a clear work surface.
First of all the preparation of the object to be painted.
If you want to paint aluminum, it’s usually for a simple aesthetic reason. Because the layer of aluminum oxide that forms is generally very dull. Repainting the object in question is therefore worthwhile, and this for decorative purposes. Before doing this, however, the aluminum should be thoroughly cleaned and prepared for painting. If your object has any grease deposits on its surface, you must remove it using a clean cloth. Then you need to sand it down. Because if your object is oxidized, you must first remove the layer of aluminum oxide with sandpaper. Sandpaper is the easiest way to sand your aluminum object. Please note that the surface will be rougher depending on the grit size of your sandpaper. It is best to use two different grits when sanding. Start with a smaller grit to eliminate the oxide layer. Then buff with a higher grit to even out any irregularities.
Then the installation of a special aluminum undercoat.
Now apply your special aluminum primer. As with classic painting, remember to cross your brushstrokes: horizontally then vertically to cover the entire surface. If necessary, for the angles of your object, swap your brush for a small brush with which you will more easily apply the varnish in the corners. Be sure to cover your entire object but do not overload the media. Remember to “wring out” your brush and brush. It is better to do several thin coats of primer rather than one very thick one. Rather than a brush application, you also have the option of using a bomb. It is sometimes said that aerosols for this task would be less effective. Whichever solution you choose, let it dry thoroughly.
Finally paint the aluminum object.
Choose an appropriate paint. As soon as the primer is dry, you can apply the desired color. Again, as for the primer, apply it crosswise with a paint roller. It is best to proceed according to the manufacturer’s instructions. Unless otherwise specified, you can apply a final coat of varnish. It all depends on the paint you use. In this regard, from undercoat to varnish to paint, you must pay attention to the mutual compatibility of the products used. In the end, you need to let the paint dry. The opening stage is not compulsory. It can be recommended if the object you are repainting is going to stay outside.