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Zinc Plating Service

The compatibility of zinc plating with various materials adds to its appeal, while its ease of application and established use make it a readily available option.

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Zinc Plating(1)


Galvanic Protection with Zinc Plating

Zinc Plating Part(1)

Zinc serves as a sacrificial anode, corroding preferentially to protect the underlying metal. The sacrificial nature of zinc helps protect the base metal through galvanic action, extending the life of the coated parts.

Among its broad services, DEK provides top-notch zinc plating solutions. Using advanced electroplating techniques, DEK ensures that metal components receive a uniform and durable zinc coating. This not only enhances the aesthetic appeal of the products but also offers strong protection against corrosion.

DEK's expertise in zinc plating extends across various industries. We offer reliable and high-quality CNC machining services with the added benefit of effective surface finishing. Furthermore, zinc plating is often more cost-effective than some alternative finishing methods, providing a balance between protection and affordability.

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More About Zinc Plating

What’s Zinc Plating?

Zinc plating is a metal finishing process that involves immersing a metal object, typically made of steel or iron, into a bath containing a solution of zinc salts. An electric current is then applied, causing a thin layer of zinc to be deposited onto the surface of the object through electrolysis.

Different types of zinc plating exist, such as barrel plating and rack plating. The benefits of zinc plating include corrosion resistance, as zinc acts as a sacrificial coating that corrodes before the underlying metal. This makes it effective in protecting steel and iron from rust and other forms of corrosion.

Aside from that, zinc plating can provide a more aesthetically pleasing finish, offering a shiny and uniform appearance. Additionally, it is cost-effective and can extend the lifespan of metal components.

Advantages of Zinc Plating

  • Corrosion resistance
  • Enhanced durability
  • Cost-effective
  • Aesthetic appeal
  • Improved conductivity
  • Easy application process
  • Compatibility with various base materials
  • Self-healing properties
  • Environmentally friendly
  • Reduced maintenance requirements

Design Considerations for Zinc Plating

  • Choose suitable base materials like steel, brass, or copper.
  • Clean and degrease the substrate thoroughly.
  • Use acid pickling or alkaline cleaning based on the material.
  • Apply zincate treatment for aluminum or nickel strike for difficult-to-plate substrates.
  • Decide on the desired zinc coating thickness.
  • Ensure uniform plating to avoid uneven corrosion.
  • Choose plating bath chemistry based on material and finish preferences.
  • Alkaline for ease and bright finish, acid for specific applications.
  • Select a rack or barrel based on part size, shape, and quantity.


Zinc Plating FAQs

The durability of zinc plating depends on various factors, such as the thickness of the coating, environmental conditions, and the application. Zinc plating provides good corrosion resistance and can last several years indoors. Outdoor exposure may reduce lifespan, but proper thickness and maintenance can extend its durability.
Zinc may corrode more rapidly in highly acidic or alkaline conditions. Additionally, zinc coatings can be susceptible to white rust, a powdery deposit that can form on the surface if exposed to moisture before installation.
Zinc plating can offer adequate protection for outdoor use, especially in mild to moderate environments. However, exposure to harsh weather conditions, extreme temperatures, or corrosive atmospheres may impact its longevity. Additional protective measures such as topcoats or alternative coatings may be recommended for extended outdoor use.
Acids, especially strong acids like hydrochloric acid or sulfuric acid, can dissolve zinc plating. To prevent damage, harsh chemicals should be avoided when cleaning or maintaining zinc-plated surfaces.
Zinc-plated components can be used in contact with concrete. However, it's essential to consider the specific conditions. If the concrete is exposed to moisture or has a high alkaline content, the zinc plating should be of sufficient thickness to withstand potential corrosion.

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