Gold plating is a method of depositing a thin layer of gold onto the surface of another metal most often copper or silver to make silver gilt by chemical or electrochemical plating this article covers plating methods used in the modern electronics industry.
Gold plated copper ring.
Silver and gold tend to diffuse into each other which can cause a plated piece to become dull or tarnished looking as the gold plating wears.
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Gold plated jewelry can wear down to the base metal.
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Modern industrial metals such as tungsten and titanium are also frequently gold plated.
Most gold plated jewelry is made with a silver base but other metals such as copper or aluminum can be gold plated as well.
Copper brass silver and wire wrapped jewelry needs protection from tarnish and fingerprints.
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The base metal in that situation is usually a copper or silver which are much more affordable than any gold alloys.
Layering the silver with copper first can create longer lasting luster.
Perhaps you have heard of white gold which is an alloy of yellow gold and a white metal for example palladium.
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It will also make jewelry hypoallergenic and will help prevent metal allergies.
For example a copper or silver ring with a layer of gold on top would be sold as gold plated.
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Gold plated jewelry costs less than a solid gold piece.
Pure 24 karat gold is a soft malleable metal.
However gold plated jewelry is made by using electricity or chemicals to deposit a very thin layer of gold over that other base metal.
Well gold plated jewelry is not made of gold actually.
For more traditional methods often used for much larger objects see gilding.
In jewelry manufacturing it is usually alloyed with other elements such as silver and copper to increase its hardness and to improve its wear resistance.
For example a ring in which the base metal is copper or silver but that has a thin layer of gold on the outer surface would be considered a gold plated item of jewelry.
Metal clay jewelry needs protection.
Gold plated tungsten ring.
Gold jewelry is stamped with a karat rating to define the amount of pure gold contained within its alloy.