Basics of Anodizing Aluminium

Changing the surface chemistry of substrates and metals is known as anodization. They will protect against corrosion, resist scratches, and improve aesthetic qualities. It is considered a durable surface finish.

Anodizing in Dubai is done on a variety of materials. Here we will learn some basics about anodizing aluminium and why it is a wise choice.

The process of anodizing in Dubai is considered a surface treatment. You can prepare aluminium to coat any surface. Rinse and clean thoroughly and place in an electrolytic solution. The solution can be sulfuric acid having plenty of positive and negative ions to swap.

Generally, a positive electric charge is applied to the aluminium. Meanwhile, a negative charge is used on the plates suspended in the electrolyte. Current can cause the positive ions to attract the negative ions and negative plates and flock towards the aluminium piece of the positive anode.

Electrochemical reactions create pores on aluminium surfaces, resulting in the escape of positive ions. As these pores erode into the substrate, they form a geometrically regular pattern. A layer of aluminium oxide is formed when the aluminium at the surface reacts with the negatively charged oxygen ions. This barrier layer is a defence against these chemical reactions. It protects against more oxidation at the surface.

As the electric current continues, the reactive and weak areas of the pores penetrate deep into the substrate, making a column-like hollow structure. The regular pattern of surface porosity creates if an electric current is applied. The longer the duration, the greater the penetration in these columns. The depth of these non-hard coatings can extend up to 10 microns. A simple rinse in water will seal the surface once this level reaches, and no color is required. Therefore, it leaves an aluminium oxide coating to withstand scratch resistance and chemical attack.