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Using PMC Gold as a Paste

The New 22K PMC Gold Product:

The new 22K PMC Gold finally makes the silver and gold clays truly compatible.  They can be fired at the same temperatures! 

When used as a clay.   The 22K gold clay can be fired in 10 minutes at 1650F or at 1290F for 90 minutes.  This product shrinks 12-17% during firing.  Simply shape and join the silver and clay pieces as you would an all silver construction and fire at an appropriate schedule for the gold (each package comes with 4 alternative firing schedules.  If you want to, you can fire a combined silver and gold piece for 2 hours at 1650F.

You can also turn the gold into a paste by adding distilled water.  You can add “PMC extender” (a diluted glycerine solution) as well.   My preferred method for using the gold as a paste is to apply the gold paste directly to the unfired silver.  Use 2-3 coats of the gold so that you have an even dark coating of the gold.  If your coats are too thin, your gold will be very pale and may not show up at all.  You can use this characteristic of the gold paste to create watercolor effects on your pieces if you like.  Allow the piece to dry thoroughly and fire with a torch.   Torch firing produces a reduction atmosphere (without oxygen).   Note that most kilns do not produce a reduction atmosphere and the gold will alloy with the silver  and “disappear” from pieces when fired in a kiln chamber where oxygen is present.  Polish the piece as desired.

If you want to apply gold to a piece that has already been fired, apply a layer of PMC3 paste (this is the best choice because of its increased stickiness) and then apply the gold to the dried PMC3 paste.  Fire the piece with a torch and polish as desired.

For  more information on the new gold clay go to http://www.pmcguild.com/gettingstarted/technicaldata.html.

 

Directions for the older 24K PMC Gold Product:

PMC Standard Gold, used in its clay form is shaped, dried and fired for 2 hours at 1830.  A very cost effective way to use PMC Gold is to use it as a paste and apply it to unfired PMC+ or PMC3.   PMC Gold can be turned into a paste by adding water (distilled water is preferred).  The paste is then applied (using one or two coats) to an unfired PMC+ or PMC3 Silver work piece.  The gold should only be applied in protected areas of the piece, since it will only be a thin layer than will eventually wear off of exposed areas.  The piece is dried thoroughly and then fired with a torch.  Torch firing produces a reduction atmosphere (without oxygen).  Note that most kilns do not produce a reduction atmosphere and the gold will dissipate and disappear from pieces when fired in a kiln chamber where oxygen is present.  The gold itself does not actually fuse.  Rather, after the binder burns off, the silver particles fuse to the gold, creating a gold covered surface that is considerably thicker than traditional gold plating.  Polish the piece as desired.

If you want to apply gold to a piece that has already been fired, apply a layer of PMC3 paste (this is the best choice because of its increased stickiness) and then apply the gold to the dried PMC3 paste.  Fire the piece with a torch and polish as desired.

MED'A Creations
San Pablo, CA 
510-236-2313
www.medacreations.com