What paint to use on aluminium?

To understand what is the best type of paint to use on aluminium, it is essential to know the final application of the surface that will be painted. The coating, in fact, will change based on the exposure of the product – internal or external -, the stresses to which it will be subjected – atmospheric or erosive agents -, and the application markets – construction, pharmaceutical, packaging -.
Once you have identified this information, you will be able to decide which type of aluminum lacquer to use:

• Acrylic lacquer: resistant to atmospheric agents, offers good adhesion and is available in different finishes.
• Epoxy lacquer: hard and resistant, it is often used in more aggressive environments or for products that require greater chemical and mechanical resistance.
• Polyurethane lacquer: particularly resistant to wear and atmospheric agents, it is suitable for products that require a longer lifespan.
• Thermal lacquer: specially used for surfaces exposed to high temperatures.
• Powder lacquer: applied electrostatically and then subjected to high temperatures, creates a solid and resistant finish.

How do you prepare aluminium for painting?

Before choosing the type of laquer to use on aluminium, it is good to remember that regardless of the type of coating (acrylic, epoxy, thermal or other), it will be a good idea to carry out a series of surface treatments on the metal such as cleaning and degreasing. Finally, you will need to apply a primer. This process will help increase the adhesion of the paint to the aluminium and prevent corrosion and deterioration.

Italcoat, a company that has been working in the field of surface treatments for almost 30 years, can supply a variety of laquers for aluminium. The proposed paint may vary based on the application markets ranging from HVAC to automotive, from food packaging to the construction sector.

For more information on the services we can provide, take a look at our Innovations!