Why does the towel rack rust when used for a long time?

Copper chrome towel rack

The raw material is brass. The "rust" of copper is different from the rust of iron. The "rust" of copper is green, which is what people often call "copper green". "Copper green" is copper oxide formed by the chemical reaction between copper and oxygen. In order to prevent copper and oxygen from coming into contact, the surface is coated with a layer of metal chrome. The stability of chrome is very good, and it is wear-resistant. It also has a bright color and is very beautiful. Usually, the door handle of the car is bright. chromium. The plated copper towel rail can not be in contact with the air and will not grow "copper". So why do customers sometimes reflect the rust in their homes? There are several situations:

1, the towel rack coating is not protected, resulting in coating damage, brass and air contact, may grow "copper" in a humid environment.

2, did not wipe frequently, over time, some leeches on the surface to form dirt, and finally spotted black spots.

3, poor water quality, containing metal ions, plus no regular wiping, or some sanitary dead zone, these metal ion-rich water droplets and air, for a long time may produce rust spots.

Alumina towel stand pure aluminum products have poor hardness and will be black, but the oxidized alumina products have a great improvement in hardness, no blackening, good wear resistance, and alumina products will not Rusty.

Stainless steel towel rails with low-grade stainless steel will rust. The higher the chromium content of stainless steel, the less likely it is to rust. The 304 stainless steel has a chromium content of 16%, good stability and strong corrosion resistance, even in long-term humid environments. It will not rust in the middle.

Zinc alloy towel rail zinc alloy towels will not rust. However, the quality is not as good as other materials, and it is easy to break.

Now that we understand the reasons for the rusting of some towel racks, we should consider all kinds of factors when choosing a towel rack to avoid the possibility of after-sales problems.

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