Online Jewelry Academy
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Recommended Tools & Supplies:
Safety Glasses (w/ magnification) - https://amzn.to/2PvIjLv
Gold Foil For Klum Boo - https://amzn.to/2MYQlrO
Agate Burnishers - https://amzn.to/2Dn93Vh
Hot Plate - https://amzn.to/2Mj8tvQ
Tragacanth Gum - https://amzn.to/2Gwolu7
Applicator Bottle (Needle Tip) - https://amzn.to/2WJptQQ
Brass Brush - https://amzn.to/2TqcjGG
Tweezer - https://amzn.to/2FHnSH0
Manicure Set - https://amzn.to/2RYCibv
Tungsten Carbide Tipped Burnisher - https://amzn.to/2GzNnZD


In this video, Prof. John Ahr of the Online Jewelry Academy introduces viewers to the Korean technique of Keum Boo or the permanent application of high karat gold foil to sterling silver without solder.  This is a simple way for jewelry designers at any level, to incorporate gold into their designs.  Adding a bit of gold can highlight a design element while commanding a higher price for the piece of jewelry.

The sterling silver object you intend to Keum Boo can be either cast or fabricated.  But, before you start, you must frost the surface of the item.  That means that you must raise a layer of fine silver on the object through depletion plating.  The OJA has a video on how to frost sterling silver in its playlist.

To perform this technique you will need two burnishers.  In the video you will see Prof. Ahr use both an agate and a tungsten burnisher.  You will also need to make a natural glue using a small amount of distilled water and a pinch of gum tragacanth.  Various tools required for performing this technique are: a hot plate, sharp scissors, a brass brush, tweezers, and a paint brush.  Additionally, you will also need high karat gold foil.  All of the aforementioned items can be purchased from most online jewelry supply companies.  Be sure to look for the best price.

If you like this video there are many more like it included in the Online Jewelry Academy's playlist.  You can find the OJA's videos organized by category on our website at: http://www.onlinejewelryacademy.com

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