Silver Plating

Electrolytic treatment mainly used for electrical applications. It has good corrosion resistance but is easily oxidized, although this does not alter its excellent electrical conductivity.
To overcome this drawback, the silver plating treatment can be protected with passivation. Supergalvanica uses a chemical protection process free of chromium and solvents.
Technical Characteristics
Alkaline bath without inorganic additives, maintaining a high purity of the deposit. Additionally, the silver deposit allows excellent solderability and has a surface hardness that can reach 110 Vickers using classic silver and up to 200 Vickers with silver-germanium.
Materials Treated
- Aluminum
- Copper
- Brass
- Stainless Steel
- Cast Iron
Allowed Dimensions
Frame processing up to 2 meters in length and barrel plating for small parts.
Types of Treatment
- Frame
- Barrel
Application examples
Some of the sectors we serve, in detail: dedicated requirements, capabilities and process configurations.
Frequently Asked Questions
5Electrolytic silver plating is a galvanic process that deposits a layer of pure silver onto metal components. It is primarily used for its excellent electrical conductivity and corrosion resistance, making it ideal for applications in the electronics, electromechanical, and connector industries.
Preparation depends on the base material and characteristics of the articles. Generally, parts must be clean, degreased, and free of oxidation or surface contaminants. Supergalvanica handles all necessary preparation processes, including substrates, to guarantee the highest deposit quality.
Both are electrolytic treatments for electrical applications, but they have different characteristics. Silver plating offers the best electrical conductivity of all metals at a lower cost, but is more susceptible to oxidation. Gold plating offers superior corrosion resistance and very low contact resistance over time, and is preferred for high-reliability connectors. A nickel substrate is often used with both treatments.
Supergalvanica uses a chromium-free and solvent-free chemical passivation process to protect the silver deposit from oxidation. This treatment preserves the excellent electrical conductivity of silver over time, even in environments subject to humidity and atmospheric agents.
Yes, the silver deposit offers excellent solderability, making it particularly valued in the electronics and electromechanical sectors. The purity of the alkaline bath used by Supergalvanica, free of inorganic additives, helps maintain the high soldering properties of the deposit.

Our electrolytic silver plating offers excellent electrical conductivity and corrosion resistance, perfect for your industrial needs. To prevent oxidation, we use advanced chemical passivation, free of chromium and solvents, ensuring long-lasting protection.
Contact us today to discover how our silver plating process, with pure alkaline bath options and classic and germanium silver, can enhance the solderability and surface hardness of your components. Our team of experts is ready to provide you with consultation, personalized quotes, and answer all your questions.









