What are the different types of galvanized coatings used on wire mesh

Galvanized wire mesh play a crucial role in enhancing the corrosion resistance and durability of wire mesh. These coatings consist of zinc applied to the surface of the mesh, providing a protective layer against rust and environmental elements. In this article, we will delve into the different types of galvanized coatings used on wire mesh, highlighting their characteristics and applications.

Hot-Dip Galvanized Coating:

Hot-dip galvanizing is the most common and widely used method for coating wire mesh. It involves immersing the mesh in a bath of molten zinc, allowing the zinc to bond with the steel through a metallurgical reaction. The hot-dip galvanized coating provides a thick and uniform layer of zinc, offering excellent corrosion resistance and durability. This coating is well-suited for various applications, including fencing, construction, agriculture, and industrial settings.

Electro-Galvanized Coating:

Electro-galvanizing is a process that applies a thin layer of zinc to the wire mesh through electrolysis. The wire mesh is immersed in an electrolyte solution, and an electric current is passed through it, depositing a uniform layer of zinc onto the surface. Electro-galvanized coatings provide good corrosion resistance, although they are thinner compared to hot-dip galvanized coatings. This type of coating is commonly used in indoor applications, light-duty fencing, and decorative purposes where moderate corrosion protection is required.

Galfan Coating:

Galfan coating is a specialized form of galvanization that combines zinc with a small percentage of aluminum and rare earth metals. This coating offers enhanced corrosion resistance and improved performance in challenging environments, including high humidity, marine settings, and industrial applications. Galfan-coated wire mesh provides extended durability and increased resistance to abrasion, making it suitable for demanding applications such as gabion walls, marine structures, and erosion control.