What is electroplating?

Electroplating is a metal-on-metal procedure that deposits a thin layer of metal to another metal. It’s commonly used to prevent corrosion and rust and extend the life of the metal beneath the electroplated metal. It’s also used to manufacture gold- and silver-plated jewellery and knickknacks and give less expensive materials a better finish to improve their visual attractiveness.

What is the Electroplating Process, and How Does It Work?

When two metals are electroplated, one of the metals is positively charged. The other, on the other hand, is negatively charged. The molecules from the positively charged metal move to the negatively charged metal once the electrical current starts flowing. This means the plated object must be able to conduct an electrical charge. This can be an issue if you need to plate anything that doesn’t conduct electricity, like plastic or wood. However, it can still be done if the foundation material is meticulously cleaned and covered with a small layer of inexpensive metal that conducts electricity. The electroplating process can generally resume once the layer of conducting material has been placed.

Gold Electroplating

Gold is a valuable metal associated with significant monetary worth and aesthetic appeal by many people. Gold also contains several qualities that can help safeguard industrial products and extend their lives. Although gold plating is more expensive than other metal finishing processes, it frequently provides the best long-term ROI.

Gold plating is a word that refers to a thin gold coating applied to an object. In reality, gold can be deposited from a solution utilizing three very similar techniques. These are some of them:

Electroplating: An electric current is conducted through a solution containing gold ions, and gold is deposited onto the cathode (negative electrode).

Electroless plating: This method does not require electricity, but it requires applying a chemical reducing agent to convert gold ions into metal.

Immersion plating is a technique for removing gold ions from a solution by dissolving a more reactive metal.

Application of Gold Plating

The three techniques described above are used for various applications and result in coatings with a wide range of characteristics. Because gold electroplating is used to make contacts and connectors, it is the most common usage of gold in electronics. There are several different types of gold plating baths on the market. The majority of them are cyanide-based.

While non-cyanide plating baths are also available, they are less stable and so have restricted applicability. Non-cyanide baths, on the other hand, provide several advantages in addition to the apparent health and environmental benefits. Electroplating is always less expensive than electroless or immersion plating since fewer chemicals are used.


The following are just a few of the many advantages of industrial gold plating: Superior corrosion resistance: Of all the metals used for electroplating, gold is one of the least reactive. As a result, it won’t react with oxygen in the air to form rust, drastically reducing a product’s lifespan. As a result, gold plating is frequently the best solution for industrial tasks requiring the highest level of corrosion resistance.

Electrical conductivity is good: It is sometimes required to allow an electrical current to pass through a non-conductive material. For electronics, sector uses, a gold coating can “metalize” a ceramic or plastic product. Gold is a good conductor of current and can tolerate the intense heat generated by multiple electrical connections. When exposed to battery acids and other rust-producing elements, it will not rust.

Longer life span: Gold is one of the more durable metals for use in metal plating. An electroplated gold coating can protect a substrate’s surface against dings, scratches, and regular wear and tear. Applying many thin layers to adjust the thickness of the gold coating to suit the application is also an option.

Unique malleability: Gold is the most malleable and ductile of all the metals, despite its strength. It is feasible to hammer gold into thin sheets that can be used in electroplating. As a result, gold may be used to coat a wide range of materials of various forms and thicknesses.

Gold is biocompatible, meaning it doesn’t hurt live tissue and is resistant to microorganisms. As a result, gold-plated implants and heart stents are extensively used in the medical device business. In addition, gold plating is frequently used in the dental sector to make fillings and implants.

Gold Electroplating’s Limitations

Electroplating has the disadvantage of requiring an electrical connection to the areas to be plated. While electroplating isolated locations is not possible, other methods have been developed. For example, electroless gold is a metal alternative for electroplated gold, in which gold ions are changed into metal using a chemical reducing agent.

Smart Microns Gold Plating Service

Gold plating on jewellery offers an item the beautiful appearance of gold without having it to be totally made of gold. Because gold is so expensive, many people will be unable to buy a solid gold piece of jewellery. The beauty of gold plating is that it allows you to give a piece all of the qualities of gold without the expensive cost. Even though gold was usually reserved for the wealthy, it has enthralled people throughout history, from Ancient Egypt to Mesoamerican societies.

In 1805, an Italian chemist named Luigi Brugnatelli invented the modern gold plating procedure. Since then, everyone can join the golden aesthetic with more affordable alternatives to actual gold jewellery. If you’re seeking gold plating services in Chennai, Smart Microns is here to help.