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Zinc Coating


Chemical coating is a widely used method in many industries to increase the durability of materials and to obtain an aesthetically appealing appearance. These coatings are accomplished by applying various metals to objects as a protective layer. At this point, zinc coating is a prominent option due to its usage areas and advantages.


Zinc coating is a chemical coating method performed by electrochemically applying zinc metal to the surface of objects. It is usually applied by means of zinc plating, electrolysis or hot dipping. In electrolysis, objects are used as negative electrodes and zinc ions precipitate from the positive electrode inside the electrolyte to the surface of the object. In the hot-dip method, the objects are dipped into the molten zinc and the coating material adheres to the surface of the object.


Corrosion resistance: Zinc coating protects objects against environmental influences, especially corrosion. Zinc coats the surface of the object with a barrier against oxidation and corrosion.
Long life: Zinc coating extends the service life of the coated objects. By forming a durable protective layer, it prevents the wear and tear of objects.
Aesthetic appearance: Zinc coating provides a bright and attractive appearance. This feature is especially advantageous for objects used for decorative purposes.

How Thick Should the Zinc Coating Be?


The thickness of the zinc coating may vary depending on the intended use and ambient conditions. In general, a thickness of 5-25 microns for indoor applications and 25-100 microns for outdoor applications is required1. As the thickness increases, corrosion resistance also increases.


What are the Uses of Zinc Coating?


Zinc coating has a wide range of uses in many industries. It is widely preferred especially in the following areas:


Automotive industry: Zinc coating plays an important role in the corrosion protection of automotive parts. Many automotive parts such as chassis, body parts, exhaust systems and brake components are protected with zinc coating.


Construction industry: Zinc plating is widely used to make structural steels corrosion resistant. Roof coverings, metal pipes and steel frames become long-lasting thanks to the zinc coating.


Electronics industry: Zinc coating in electronic devices is used to protect components against corrosion and to provide electrical conductivity.


Marine industry: Ship parts and marine equipment are zinc plated to reduce the corrosion effect of seawater on objects.




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