Phosphoric acid anodizing is an anodizing method that is more advanced and requires part of the manufacturers in the form of environmental approvals etc. HAI therefore has all the approvals required to offer these treatments. See all our standards and certifications if necessary.
Phosphoric acid anodizing is a process in which aluminum is surface treated to increase durability and resistance to corrosion. The process uses phosphoric acid to form an oxidized layer on the aluminum surface. This layer protects the metal against rust and other forms of oxidation.
Phosphoric acid anodization is a special type of anodization where phosphoric acid is used as an electrolyte in the anodization. This type of anodizing is particularly suitable for aluminum and aluminum alloys. Phosphoric acid anodization can be carried out in both weak and strong concentration, depending on the desired properties for the finished surface treatment.
Phosphoric acid anodizing is done by immersing the aluminum in a solution of phosphoric acid and applying an electric current. The electric current causes the phosphoric acid to react with the surface of the aluminum and form an oxide layer on the surface. The longer the aluminum is kept in the solution and under the influence of current, the thicker the oxide layer becomes.
Phosphoric acid anodizing results in a hard, dense surface with excellent corrosion resistance and wear resistance. The surface treatment can also be used to color aluminum surfaces in various shades of grey, black, bronze and other colours.
One of the advantages of phosphoric acid anodizing is that the resulting surface treatment is very durable and resistant to wear and corrosion. This makes phosphoric acid anodizing a popular surface treatment in a variety of industries, including electronics, aerospace and automotive.
All in all, it can be said that phosphoric acid anodizing is an effective way to increase the durability and resistance of an aluminum surface. The process is simple but requires precision and expertise to achieve the best result.
That is why know-how is important in the anodizing process. There are many different ways of carrying out the individual process that produce different results.
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