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Keum-boo is an ancient Korean gilding technique used to apply thin sheets of gold to silver, to make silver-gilt. Traditionally, this technique is accomplished by first depleting the surface of sterling silver to bring up a thin layer of fine silver. Then 24 carat gold foil is applied with heat and pressure - mechanical gilding - to produce a permanent diffusion bond. Pure precious metals such as gold and silver have a very similar atomic structure and therefore have a good potential for bonding. Heating these metals to a temperature between 500-700°F increases the movement of the atoms. When pressure is added, this causes an electron exchange at the surface between the two metals, creating a permanent diffusion bond. This diffusion bond occurs far below the soldering temperature for either metal.
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Great intro kiln especially if you are not keen on torch firing. Comes with spatula, and lid cover. Best to get a temperature regulator and metal clay firing disks. The UltraLite Beehive Kiln is an easy, safe and fun kiln to fire PMC+ Silver, PMC3 Silver, PMC 22K Gold and Art Clay 650 Silver Products
The Studio model has a 3.5" element than the beehive which creates a larger heat sink. Comes with spatula, hot pad (to protect table), & lid cover Best to get a temperature regulator and metal clay firing disks. Used to ! fire PMC+ Silver, PMC3 Silver, PMC 22K Gold and Art Clay 650 Silver Products (not tested with FYI, not recommended for Metal Magic)
Recommended for your beehive or studio kiln as it gives you a full range of temperatures for many successful firings. 10 Identified temperatures from 1550F to as low as 850F. Comes with a 6’ cord. Use with the 120V Kilns.
Three ceramic disks for use as shelves in either the beehive or studio kiln.
7” High Temperature Rubber Pad for use under the kiln it protects your tabletop and stabilize your kiln when burnishing. Comes with the studio kiln