Why hot-dipped galvanized welded wire mesh costs more than electro-galvanized welded wire mesh

We all know that welded wire mesh is a metal fence used to keep our animals, plants, and property safe and sound. After it's been galvanised, the galvanized welded wire mesh is even more corrosion-resistant, so it can be used outdoors for a long time. But did you know that hot-dip galvanised welded wire mesh is pricier than electro-galvanised welded wire mesh? And how do you choose the right galvanized welded wire mesh?

I. Introduction

Galvanized welded wire mesh is a popular construction metal fence known for its strength and corrosion resistance. Made by welding high-tensile low carbon steel wires into a grid pattern, the welded wire mesh is then coated with a layer of zinc to protect the welded wire mesh from rust and other forms of degradation, making the galvanized welded wire mesh suitable for long-term outdoor use. The galvanization process can be done either before or after the welding manufacturing process.

II. Understanding Welded Wire Mesh Galvanization Processes

   A. Definition of Galvanization

Galvanized welded wire mesh is a type of wire mesh that has been treated with a layer of zinc to protect it from corrosion and rust. The galvanized welded wire mesh is made by welding together intersecting rows and columns of low carbon steel wires to form a grid-like structure. The galvanization process can be applied either before or after the welding process:

Pre-Galvanized (Galvanized Before Welding): The low carbon steel wires are galvanized before they are welded together. This method ensures that each iron wire is individually coated with zinc.

Post-Galvanized (Galvanized After Welding): The entire welded wire mesh is dipped into molten zinc after the welding process. This method provides a uniform coating over the entire structure.

The galvanization process enhances welded wire mesh by applying a protective zinc coating to resist corrosion. This results in a stronger, longer-lasting welded wire mesh fence suitable for outdoor use. The coating provides a barrier against moisture and chemicals, ensuring durability. Galvanized welded wire mesh is characterized by its rust prevention, high tensile strength, and versatility in applications such as fencing, construction reinforcement, and safety barriers.

  B. Types

The galvanization manufacturing process including hot-dipped galvanization and electro-galvanization.

Hot-dipped galvanized welded wire mesh:The welded wire mesh is submerged in a bath of molten zinc at temperatures around 450°C (842°F). This process creates a thick, durable layer of zinc coating.

Electro-galvanized welded wire mesh:The welded wire mesh is placed in a solution containing zinc ions and then subjected to an electric current. This causes a thin layer of zinc to be deposited onto the surface of the welded wire mesh.

III. Different features of galvanized welded wire mesh

   A. Coating Thickness and Quality

Hot-dipped galvanized welded wire mesh:The zinc layer is generally thicker, ranging from 35-280g/m², providing superior corrosion resistance.More resistant to mechanical damage and abrasion due to the thicker zinc layer.The thicker zinc coating extends the lifespan of the hot-dipped galvanized welded wire mesh, making it suitable for long-term applications and harsh environments, such as coastal areas or industrial settings where exposure to corrosive elements is high.

However,hot-dipped galvanized welded wire mesh generally more expensive due to the intensive process and thicker zinc coating.The finish may be less smooth and less aesthetically pleasing compared to electro-galvanized welded wire mesh. Hot-dipped galvanized welded wire mesh may also have a spangled (crystal-like) appearance.

Electro-galvanized welded wire mesh:The electroplating process allows for precise control over the thickness of the zinc coating, typically ranging from 15-38g/m²,provides a smoother and more aesthetically pleasing finish, making the electro-galvanized welded wire mesh suitable for applications where appearance matters.And the electro-galvanized welded wire mesh generally less expensive than hot-dipped galvanized welded wire mesh due to the less intensive process and thinner zinc coating.

However,The zinc layer is thinner, offering less corrosion resistance compared to hot-dipped galvanized welded wire mesh.Not ideal for highly corrosive environments or long-term outdoor use.The thinner zinc coating means the electro-galvanized welded wire mesh may have a shorter lifespan and require more frequent maintenance or replacement.

   B. Corrosion Resistance

Hot-dip galvanized welded wire mesh has a thicker layer of zinc, providing stronger rust and corrosion resistance, and a longer lifespan, making the hot-dipped galvanized welded wire mesh more suitable for outdoor environments and regions with extreme weather conditions.

   C. Surface Finish

The surface of galvanized welded wire mesh can significantly influence its specific applications.

Hot-dip galvanized welded wire mesh is coated with a thicker and more robust zinc layer, which is highly effective at preventing rust and corrosion, particularly in harsh environments. The coating may appear slightly irregular, with a matte finish, but it provides a strong barrier against the elements. The hot-dipped galvanized welded wire mesh is often used in construction, agriculture, and industrial applications where durability and protection from the weather are paramount.

On the other hand, electro-galvanized welded wire mesh is coated with a thinner, yet very smooth and uniform coating that gives the welded wire mesh a more refined appearance. While electro-galvanized welded wire mesh may not offer the same level of corrosion resistance as hot-dip galvanization, electro-galvanized welded wire mesh is still suitable for many applications and is often preferred for its cleaner look. Electro-galvanized welded wire mesh is commonly used in settings where both functionality and visual appeal are important, such as decorative fencing, household furniture, and architectural features.

IV. Galvanized Welded Wire Mesh Wholesale

Choosing between hot-dipped galvanized welded wire mesh and electro-galvanized welded wire mesh depends on various factors, including the intended application, environmental conditions, budget, and aesthetic preferences.

1. If the galvanized welded wire mesh will be exposed to harsh environments such as coastal areas, industrial zones, or places with high humidity and corrosive elements, hot-dipped galvanized welded wire mesh is the better choice due to its thicker and more durable zinc coating. For indoor use or areas with minimal exposure to corrosive elements, electro-galvanized welded wire mesh can be sufficient.

2.  If you need a solution that will last for many years with minimal maintenance, hot-dipped galvanized welded wire mesh is more durable and offers a longer lifespan. Electro-galvanized wire mesh can be a good option for short to medium-term applications.

3.  If budget constraints are a significant factor, electro-galvanized welded wire mesh is generally less expensive and can provide adequate protection for less demanding applications. Hot-dipped galvanized welded wire mesh may have a higher initial cost, but its extended lifespan and reduced maintenance requirements can make it more cost-effective over time.

4. Electro-galvanized welded wire mesh typically has a smoother and more aesthetically pleasing finish, making electro-galvanized welded wire mesh suitable for decorative applications or where appearance is important.
   

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