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Galvanized vs. Hot Dip Galvanized: What's the Difference?

Edited by Aimie Carlson || By Janet White || Published on February 23, 2024
Galvanization is the process of applying a protective zinc coating to steel or iron, whereas hot dip galvanizing is a specific method where the metal is dipped in molten zinc.

Key Differences

Galvanized refers to the general process of coating iron or steel with zinc to prevent rusting. Hot dip galvanizing is a specific technique where the metal is submerged in a bath of molten zinc.
In galvanization, various methods like electro-galvanizing can be used, which involves an electrical current to apply the zinc coating. Hot dip galvanizing, however, relies on the physical dipping of the metal into zinc for coating.
The thickness of the zinc layer in general galvanization can vary based on the method used. Hot dip galvanizing typically results in a thicker, more durable zinc coating.
Galvanized products can be produced at different speeds and costs depending on the method. Hot dip galvanizing is often more time-consuming and can be costlier but offers superior corrosion resistance.
The application of galvanized coatings is versatile, with methods suitable for various scales of operation. Hot dip galvanizing is most effective for larger items needing a robust, uniform coating.

Comparison Chart


Applying zinc coating to steel or iron
Dipping steel or iron in molten zinc


Various, including electro-galvanizing
Primarily involves the dipping process

Coating Thickness

Varies with method
Generally thicker and more uniform

Production Time and Cost

Depends on method; can be faster and less expensive
More time-consuming and often costlier


Varied, depending on the method
Ideal for larger items requiring robust protection

Galvanized and Hot Dip Galvanized Definitions


Excited or shocked into activity.
The sudden crisis galvanized the community into volunteering.

Hot Dip Galvanized

Coated with a thick layer of zinc.
Hot dip galvanized fencing is ideal for coastal areas.


Coated with a layer of zinc.
The galvanized pipes resisted rust effectively.

Hot Dip Galvanized

Treated by a specific galvanizing process.
The bridge was constructed with hot dip galvanized steel.


Stimulated into action.
The team was galvanized into action by the inspiring speech.

Hot Dip Galvanized

Treated for enhanced corrosion resistance.
The outdoor structures were built with hot dip galvanized iron for durability.


Treated to resist corrosion.
They used galvanized nails for the roofing to prevent rust.

Hot Dip Galvanized

Submerged in molten zinc for coating.
The hot dip galvanized beams will last longer in harsh conditions.


Provided with a protective coating.
The galvanized steel sheets are used in outdoor constructions.

Hot Dip Galvanized

Undergone a dipping process for rust protection.
For heavy-duty applications, they chose hot dip galvanized metals.


To stimulate or shock with an electric current.


To arouse to awareness or action; spur
"The country was galvanized in the weeks and months after 9/11" (Davis Phinney).


To coat (iron or steel) with rust-resistant zinc.


Alternative spelling of galvanised


Simple past tense and past participle of galvanize


What does galvanized mean?

Coating iron or steel with a layer of zinc.

Which method provides thicker coating, hot dip galvanizing or general galvanizing?

Hot dip galvanizing typically provides a thicker coating.

Can hot dip galvanizing be used for small parts?

Yes, but it’s more commonly used for larger items.

Is electro-galvanizing the same as hot dip galvanizing?

No, electro-galvanizing uses electrical current to apply zinc, differing from the dipping process.

Are all galvanized metals hot dip galvanized?

No, there are other methods of galvanizing too.

Can galvanized metal be painted?

Yes, but proper surface preparation is necessary.

What is hot dip galvanizing?

A process of dipping steel or iron in molten zinc.

Is hot dip galvanizing more expensive?

Yes, it can be more expensive than other galvanizing methods.

Can galvanized steel be used underground?

Yes, but its lifespan may be reduced in such conditions.

Which is more durable, galvanized or hot dip galvanized metal?

Generally, hot dip galvanized metal is more durable.

How long does hot dip galvanized coating last?

It can last several decades, depending on the environment.

Does hot dip galvanizing affect steel strength?

It generally does not significantly affect steel's structural strength.

How is galvanized metal recycled?

It can be recycled like regular steel or iron.

Is hot dip galvanizing suitable for marine environments?

Yes, it's highly suitable due to its corrosion resistance.

Does the zinc coating of hot dip galvanized metals wear off?

Over time and in harsh conditions, it can slowly erode.

Are galvanized metals rustproof?

They are highly rust-resistant, but not completely rustproof.

Is hot dip galvanizing environmentally friendly?

It is relatively eco-friendly, but energy and material use should be considered.

How do you maintain galvanized surfaces?

Regular cleaning is usually sufficient for maintenance.

Can hot dip galvanized surfaces be repaired?

Yes, using methods like zinc-rich paints or sprays.

What are common uses of galvanized metal?

In construction, automotive, and appliance industries.
About Author
Written by
Janet White
Janet White has been an esteemed writer and blogger for Difference Wiki. Holding a Master's degree in Science and Medical Journalism from the prestigious Boston University, she has consistently demonstrated her expertise and passion for her field. When she's not immersed in her work, Janet relishes her time exercising, delving into a good book, and cherishing moments with friends and family.
Edited by
Aimie Carlson
Aimie Carlson, holding a master's degree in English literature, is a fervent English language enthusiast. She lends her writing talents to Difference Wiki, a prominent website that specializes in comparisons, offering readers insightful analyses that both captivate and inform.

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