How to effectively avoid the corrosion of aluminum railings by salt

Typically,aluminum railings are very difficult to corrode. This is because aluminum metal has excellent corrosion resistance, but it still can’t resist pitting, and avoiding it can be done by doing one of these things:

First, what is pitting corrosion?

Pitting is a typical type of corrosion in seawater environments and in humid environments where salt is present. The most common salts that cause pitting in atmospheric exposures are chlorides or sulfates. In the case of alkaline or acidic salts, the rate of pitting corrosion will increase further.

Corrosion usually manifests itself as very small pits or holes. These pits in the open air will in most cases only reach a small fraction of the thickness of the metal and therefore do not affect the strength of the material.

How to avoid this corrosion?

It is very simple to avoid this corrosion, you just need to follow one of these methods below and pick the one that works for you. Corrosion will be very difficult to appear on the surface of your aluminum railing.

Choose aluminum alloy with good corrosion resistance:

When choosing aluminum railing materials, you can give priority to those aluminum alloys that have added corrosion-resistant alloy elements. Such as adding magnesium, manganese and other elements of 6063 aluminum alloy, or 6061-T6 aluminum alloy with aging treatment. These alloying elements can effectively resist corrosion so that the surface of your aluminum railing is always smooth and beautiful.

Anodizing finish for corrosion resistance：

Anodizing is a method of electrochemically forming an oxide film on the surface of aluminum. This oxide film is thick, dense, and uniform, providing good corrosion resistance.

Anodized coatings effectively isolate aluminum from direct contact with the environment. It prevents corrosive substances such as chloride ions from penetrating the aluminum surface, thus protecting the aluminum railing from corrosion.

Powder coating or paint protection：

We can add powder coating or paint to the aluminum railings we manufacture. A protective coating of powder or paint can form a physical barrier that prevents corrosive substances from coming into direct contact with the aluminum surface, thus extending the service life of the aluminum railing. Powder coating and painting are effective in protecting the surface of the railings from acid damage, and the protective coating resists damage in the acid rain.

Regular care and maintenance of aluminum railings

Clean the surface of aluminum regularly to remove dirt, salt stains and other corrosive substances. We can use mild cleaners or special aluminum cleaners for cleaning, avoid using cleaners containing acidic, alkaline or abrasive agents to avoid damage to aluminum.

Choose aluminum railings that do not corrode!

Hugh Aluminum  is a manufacturer of aluminum railings and profiles. We have powder coating and anodizing capabilities. When you are still worried about corrosion of aluminum railings, we produce powder coated railings that can help you out.

• If you are looking for an aluminum manufacturer?
• You want to purchase aluminum railings in bulk but don’t have the right price?
• You want to customize an aluminum railing for your project but don’t have an excellent design?

Hugh aluminum can solve these problems——Don’t hesitate to contact our team!