{"id":11276,"date":"2025-09-22T19:20:57","date_gmt":"2025-09-22T19:20:57","guid":{"rendered":"https:\/\/esquell.eu\/kennisbank\/keum-boo\/"},"modified":"2025-11-05T10:53:39","modified_gmt":"2025-11-05T10:53:39","slug":"keum-boo","status":"publish","type":"kennisbank","link":"https:\/\/esquell.eu\/en\/knowledge-base\/keum-boo\/","title":{"rendered":"Keum-Boo"},"content":{"rendered":"\n\n\n
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What is keum-boo?<\/h3>\n

Keum-boo (pronounced “koem-boe”) is an ancient Korean technique in which pure gold(24 karat gold leaf or foil<\/a>) is permanently bonded to silver. This is done by heat and pressure. The result is a beautiful contrast: the warm luster of gold on the cool silver surface. <\/p>\n

How does it work?<\/h3>\n

The secret lies in the properties of precious metals. When silver is heated to about 500 \u00b0C, the surface becomes “active” and gold can fuse with it, so to speak. By gently rubbing or pressing with a smooth tool(for example, an agate pen<\/a> ), the gold permanently adheres to the silver. Thus, no glue or solder is involved! <\/p>\n

Application to silver clay<\/h3>\n
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    Preparation:<\/strong> Make your ornament out of silver clay and bake it completely according to the instructions.<\/p>\n<\/li>\n

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    Polishing:<\/strong> Make sure the surface is clean and smooth (if necessary, polish to a high gloss first).<\/p>\n<\/li>\n

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    Heating:<\/strong> Bring the finished ornament to temperature, such as with a hotplate or hotplate.<\/p>\n<\/li>\n

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    Applying gold:<\/strong> Place a piece of 24k gold leaf or foil on the silver and rub gently until it adheres.<\/p>\n<\/li>\n<\/ul>\n

    Because silver clay consists of pure silver (99.9%) after firing, it is ideally suited for Keum-boo.<\/p>\n

    Application to plate silver<\/h3>\n
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      Preparation:<\/strong> Preferably use fine silver (99.9%). Sterling silver (925) can also be used, but this requires first removing the copper layer on the surface by depletion annealing (heating and pickling several times). <\/p>\n<\/li>\n

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      Heating and application:<\/strong> The process is otherwise the same as for silver clay: heating, positioning gold, pressing and rubbing until the gold adheres.<\/p>\n<\/li>\n<\/ul>\n

      Why use Keum-boo?<\/h3>\n
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        Gives a luxurious look without having to make an all-gold piece of jewelry.<\/p>\n<\/li>\n

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        Enables unique designs by adding patterns, accents or large areas of gold.<\/p>\n<\/li>\n

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        It is durable: the gold is really fixed and does not just wear away.<\/p>\n<\/li>\n<\/ul>\n\n \n\n\n <\/div>\n <\/div>\n\n \n <\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"","protected":false},"featured_media":11121,"parent":0,"template":"","kennisbank-taxonomy":[6335],"class_list":["post-11276","kennisbank","type-kennisbank","status-publish","has-post-thumbnail","hentry","kennisbank-taxonomy-tutorials"],"acf":[],"_links":{"self":[{"href":"https:\/\/esquell.eu\/en\/wp-json\/wp\/v2\/kennisbank\/11276","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/esquell.eu\/en\/wp-json\/wp\/v2\/kennisbank"}],"about":[{"href":"https:\/\/esquell.eu\/en\/wp-json\/wp\/v2\/types\/kennisbank"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/esquell.eu\/en\/wp-json\/wp\/v2\/media\/11121"}],"wp:attachment":[{"href":"https:\/\/esquell.eu\/en\/wp-json\/wp\/v2\/media?parent=11276"}],"wp:term":[{"taxonomy":"kennisbank-taxonomy","embeddable":true,"href":"https:\/\/esquell.eu\/en\/wp-json\/wp\/v2\/kennisbank-taxonomy?post=11276"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}