The chemical activity of zinc is higher than that of iron. When electrochemical corrosion occurs, zinc is corroded first rather than iron. The oxide of zinc is relatively dense, which can prevent further oxidation. So galvanized barbed rope has good corrosion resistance (it is necessary to pay attention to the point that galvanized should be hot galvanized rather than electric galvanized);
Plastic cladding is to form a layer of molecular plastic protective film on the outer surface of the raw wire of the barbed rope. However, because the process of plastic cladding and barbed rope is made after plastic cladding, the section of the barbed wire is exposed. It is better if it is hot-dip galvanized. In actual use, the section may be corroded after rain erosion, so the service life of the plastic-coated barbed rope will be shortened.
The above is to make a simple description, the specific choice of plastic coated barbed rope or galvanized barbed rope depends on your environment and site!
Post time: 13-04-22