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Rhodium Plating – A Jewelry Protection & Value added Technique

What is Rhodium & why is it used for Plating? It is a valuable finishing material, an element of the noble metallic family i.e. platinum. Rhodium plating through electrolysis is utilized, particularly on jewelry, to prepare a surface finish that will withstand wear outs and dullness, and maintain a white, reflective surface.

Rhodium Plating on White Gold: Rhodium electroplating is usually used on white gold. The terminology of white gold is somewhat of a misleading term. Gold is normally yellow, what is known as white gold in the market is a metallic alloy of gold and a white element – normally palladium (from noble metallic family i.e. platinum), nickel, and silver. Metals called as white are essentially somewhat of a gray appearance, therefore white gold has a cast that can be referred as yellowish. The more the karat weight, the higher gold in its gold & white metal alloy, the more yellowish the cast seems.

Subsequently the user of a white gold is taking the plated item for a lively white appearance, an incredibly thin coating of rhodium plating. Therefore rhodium coating is utilized to luster jewelries. White gold coated with rhodium will also maintain its virtuous appearances lengthier – rhodium will not turn dull or fade out its brightness, and because it is a durable material, it is less probable to wear out or have scratches.

Rhodium plating on Silver:  Rhodium coating is also done on silver which yields a glowing appearance, analogous to that on white gold objects. Rhodium is harder & stronger than silver. Rhodium electroplating is utilized on sterling silver to strengthen it and enhance resistance to face every day wear forces.

Black Rhodium Electroplating: This process is also available in the market and is used by many jewelers. This yields a greyish black appearance and is a fascinating substitute to usual rhodium plating. Black Rhodium coating gives a robust, tarnish-resilient grayish black surface. It appears extravagant as an ultimate finish or it can be chosen for confined plating on selective parts of a jewel.

Rhodium Plating Kit: It is used for white gold plating on jewel items. These devices are perfect for electroplating rhodium with high quality, reflecting shinny surfaces and are frequently used by rhodium electroplating services providing jewelers.

Learn about Cost Price Analysis of Rhodium Plating on white gold.

How long does rhodium plating last? It is vital to get oneself conscious that rhodium electroplating does not remain for whole life on jewelries. The coating on item that withstand a lot of wear forces, for example a wedding ring, can erode in couple of years, but a pin or necklace that is used not frequently or interacts less with human skin or other things like clothing, & other substances can maintain its coating for as long as ten years or even more.

Plating peeling off & the Myth of Rhodium Allergy: Expert can easily identify when the coating is going off by the appearance of the rhodium plated item; the region deprived of the plating will reveal the yellowish hue of the base white gold. Staining can also result on the un-coated regions, and in some specific unusual cases, one’s skin will have a trivial reddening allergy to the uncovered alloy of white gold. If your jewelry item that you wear everyday results an allergic reaction, you can inquire your jeweler about getting it electroplated in a non-allergic metal, for example rhodium or platinum. The allergy is usually caused by white gold made from alloying nickel, so you ask your jeweler to give you nickel free rhodium plated white gold jewel.

Rhodium Plating White Gold Rings

What to do when Rhodium Plating peels off? In such instances, you can always pay a visit to the jeweler’s shop.  This can actually get your jewel item back to life. Majority of these ornaments can be swiftly electroplated again, even though re-electroplating a two color item will be additionally costly since the rework requires to be completed by hand. Rates will likewise differ concerning the rhodium plating thickness that you select to employ, the thicker the electroplating, the more rhodium is utilized, and so the more costly the process becomes. Select thicker coatings for jewels you wear daily. The delta of this additional investment will be worthy in the future, as you won’t be electroplating the jewel again and again in short span of time.


Engineer Sheikh Imran is a manufacturing expert of over ten years experience in the field of manufacturing. He did his BE in Industrial Manufacturing from NED University in 2010. Imran has broad knowledge and expertise in the areas of metal cutting and cutting tools and in R & D of manufacturing methodologies. He has worked for more than 8 years about various projects under the following heads: Manufacturing process improvement Boiler Manufacturing Manufacturing system improvement Projects

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