What is the Difference Between Zintec and Galvanised?

The main difference between Zintec and galvanized steel lies in the process used to apply the zinc coating and the resulting properties of the materials. Here are the key differences:

1. Production process: Galvanized steel is created by immersing steel in a hot bath of molten zinc, while Zintec is produced using an electromagnetic process on cold-rolled steel.
2. Zinc coating thickness: The layer of zinc on Zintec is much thinner than that on galvanized steel, making Zintec more machinable. Zinc plating requires a minimum thickness of 5μm and a maximum of 25μm, while hot-dip galvanizing adds a coating of around 50 microns.
3. Corrosion resistance: Zintec is designed to resist corrosion and rust when stored or moved around, but it is not recommended for outdoor use or continuous exposure to the elements. Galvanized steel, on the other hand, is more suitable for outdoor use and provides better protection against rust.
4. Appearance: Zintec has a bluish-grey color and a matte finish, while galvanized steel has a dull grey appearance. Zinc-plated products are shiny and smooth, while galvanized products are dull and a little rough.
5. Coating adhesion: Hot-dip galvanizing results in a metallurgical bond between zinc and steel, providing a stronger coating adhesion compared to zinc plating (electro-galvanizing).

In summary, Zintec and galvanized steel differ in their production processes, zinc coating thickness, corrosion resistance, appearance, and coating adhesion. Zintec is more suitable for indoor use or applications where the material is not exposed to the elements, while galvanized steel is better for outdoor use and environments with harsher conditions.

Comparative Table: Zintec vs Galvanised

Here is a comparison table highlighting the key differences between Zintec and Galvanised steel:

In summary, Zintec is a type of steel coated with zinc through electrolysis, offering a smooth and uniform surface suitable for painting or other surface finishes. It is known for its corrosion resistance, paintability, and formability, making it suitable for applications requiring high-quality finishes and internal use. Galvanised steel, on the other hand, is dipped in a hot bath of molten zinc, resulting in a thicker and more robust coating that provides excellent corrosion resistance and is suitable for outdoor use.