What is anodized aluminum?
Anodizing aluminum is a chemical process by which the surface of aluminum is modified to form a protective layer of aluminum oxide.
The main advantages are:
- Increased abrasion resistance
- Corrosion protection
- Uniformity of surface and maintenance of metallic appearance after printing
- Prolongation of the useful life of the material
Thanks to the integration of the different production processes, at Alumigraf we can print any design required by the job before the anodic layer has finished sealing, so that the print on our control panels and button panels y nameplates and characteristics are protected by this aluminum oxide layer.
THE ANODIC LAYER
The porous and transparent layer on the surface of the aluminum constitutes the anodic layer and is produced by the anodizing process.
This properly sealed coating is twenty times more wear resistant than a good epoxy coating giving our products greater resistance.
ANODIC COATING QUALITY
The electrolytically treated but unsealed anodic layer has a high absorption capacity thanks to its micro pores, which allows coloring by means of pigments (ink).
The anodic layer tends to “deteriorate” under ambient temperature and humidity conditions, as it reacts to moisture by expanding (widthwise) and closing the pore.
This generates a layer of aluminum hydroxide, reducing the absorption capacity and sealing it definitively.
If we print the required design before sealing, the pigment is “encapsulated” within the anodic layer.
COLOR ANODIZED ALUMINUM
In the same way, with the anodic layer before final sealing, it is possible to color the whole piece by immersing it in dye.
In this way it is possible to color machined aluminum parts without losing the metallic appearance of aluminum.
ANODIZING OF PARTS
We are manufacturers of several product lines such as control panels, nameplates or signage. But one of the most demanded services is the anodizing of parts.
Those customers who want to make their products harder, increasing their durability and useful life, use our anodizing service.