Zincalume fencing is widely used in modern residential and balcony settings due to its vibrant colors and versatile applications. However, users may notice that our zincalume fencing can rust after heavy rain. Compared to cast iron fencing, zincalume offers significant advantages. It's moderately priced, doesn't rust easily, but can do so over a long period. How can we prevent rust?

Galvanized steel fences can rust under certain conditions. They possess the ability to resist atmospheric oxidation, akin to stainless steel. Additionally, they exhibit corrosion resistance in mediums containing acids, alkalis, and salts. However, their corrosion resistance varies with the chemical composition of the steel, its mixing state, usage conditions, and the type of environmental medium.

For instance, 304 steel pipes, in a dry and clean atmosphere, possess corrosion resistance; however, once they are moved to the seaside, they will quickly rust in the salty sea fog. The 316 steel pipes are also commendable. Therefore, under any environment, no zinc-coated steel barrier can be corroded or rusted.

Zinc steel railing forms a thin, sturdy, and stable chromium oxide film (protective layer) on the steel surface, preventing the continuous penetration of oxygen atoms and oxidation, and possesses anti-corrosion properties. Should the film be continuously damaged for any reason, oxygen atoms from the air or liquid will continuously penetrate, or iron atoms within the metal will be continuously separated to form loose ferric oxide, leading to continuous corrosion of the metal surface.