Types of Galvanization

Galvanization is a popular method to shield metal from corrosion through the application of a zinc-based protective coating. This method is essential to improve...
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Types of Galvanization

Galvanization is a popular method to shield metal from corrosion through the application of a zinc-based protective coating. This method is essential to improve the endurance and tensile strength of different metal objects. This article we’ll examine different galvanization methods, their advantages and uses.

Hot-Dip Galvanization

Hot-dip galvanization happens to be one of the most widely used and effective methods of coating iron or steel with zinc. It involves soaking the metal in a molten zinc bath that forms a dense and long-lasting layer. This kind of galvanization is widely used for applications such as fences, automobile parts as well as structural steel.


Electro-galvanization, also known as electroplating, is a process where a thin layer of zinc is applied to the metal through electrolysis. It gives a more smooth as well as more accurate coating than hot dip galvanization. It is available in products such as automobile components and electrical enclosures.


Sherardizing is an exclusive galvanization procedure that involves putting the metal inside a spinning drum, which is filled with zinc dust. The heat is used to cause diffusion, which creates the coating of zinc-iron alloy. This process is ideal for the smallest, most complex and threaded components, which increases its resistance against corrosion.

Mechanical Galvanization

Mechanical galvanising, also known as spin galvanization, is a technique which involves tumbling the metallic parts using zinc powder in a drum. This method is typically used to coat small, irregularly-shaped objects. It offers a strong protection layer and is often used to make nuts and fasteners.


In the end, different types of galvanization processes offer unique advantages based on the application’s particular requirements. Hot-dip galvanization is ideal for heavy-duty applications, while electro-galvanization provides a more precise finish. Mechanical and sherardizing galvanizations can be used for more compact and intricate components. If you are aware of these processes it is possible to make informed decisions to shield your metal parts from corrosion and extend their lives.


What’s the goal of galvanization?

Galvanization is the method of applying a protective zinc coating on metal objects in order to avoid corrosion and to increase their longevity.

What is hot-dip galvanization? How does it function?

Hot-dip galvanization is the process of immersing the metal into molten zinc to create a durable, thick zinc coating.

When should I choose electro-galvanization?

Electro-galvanization is suitable for applications requiring a smoother and more precise zinc coating, such as electrical enclosures and automotive components.

What are the benefits of sherardizing?

Sherardizing is a great option for small or complex threaded components, which improve their resistance to corrosion.

What is the most common place for the mechanical galvanization most often used?

Mechanical galvanising, also referred to as spin galvanization, is commonly used to manufacture nuts, fasteners as well as small, irregularly shaped objects.

Different galvanization techniques offer a variety of options to shield metallic objects against corrosion, making sure that they’re in great condition for a long time.

For more details visit: Galvanization and Hot Dip Galvanizing