Stainless steel is a very thin, firm, fine and stable chromium-rich oxide film (protective film) formed on its surface to prevent the continuous infiltration and oxidation of oxygen atoms, and obtain the ability to resist rust. Once the film is damaged continuously for some reason, the oxygen atoms in the air or liquid will continue to infiltrate or the iron atoms in the metal will continue to separate out, forming loose iron oxide, and the metal surface will be continuously corroded.

What situations in daily life are likely to cause stainless steel to rust?

There are many forms of damage to this surface film, the most common in daily life are the following:

1. When the kitchen is renovated, welding debris, cement, oil stains, etc. remain on the surface of the faucet and sink. If not cleaned in time, it may cause rust and mildew;

2. Sometimes, dust with minerals or acid and alkali in the newly renovated house will fall on the faucet, and the surface of the sink will also cause “floating rust” when it encounters moisture.

During use:

1. Kitchen knives, scissors, bottle openers and other steel items are placed on the surface of the sink for a long time, which will cause rust, mildew or discoloration;

2. Chemicals, cleaning agents, paints, sauces, oil stains, etc. remain in faucets and sinks. Over time, mold will stick to the surfaces of faucets and sinks;

3. In many areas, the water quality is poor, and the content of iron and other elements in the water is too high. After the sink is used, if there are many water stains left, the iron in the water will rust over time, especially for new house decoration, such as long-term residual water in the water pipe. If the water stains left on the sink are not cleaned in time, it is easy to cause floating rust.

In addition, these two basic substances can destroy the passive surface layer of stainless steel and cause corrosion to it:

1. Mechanical abrasives

Refers to things that will scratch the surface of steel, such as: steel wipes, wire brushes, and metal fragments.

2. Bleach

It’s everywhere. Exist in water, food, salt. One of the worst comes from household and industrial cleaners.

Stainless steel rust treatment skills

How to prevent stainless steel faucets and sinks from rusting?

To ensure a permanently bright metal surface without rusting, we recommend:

Regularly clean and scrub the surface of decorative stainless steel to remove attachments and eliminate external factors that cause rust. The processing method is as follows:.