it may be useful to apply aluminum paint to make the material look more visually appealing. Aluminum paint is also useful when the non-ferrous metal comes into contact with chemicals with a high pH value.
Use a one-component paint for lower stresses. Two-component or powder coatings are recommended wherever the material is exposed to weather-related and mechanical influences.
If you are working with a primer and an aluminum paint, make sure that they are compatible with each other. It is best to use products from the same manufacturer.