glazes

Raku Glaze

June Glaze: Forbes Midnight Blue

Midnight Blue is a rich cobalt blue with red streaks in post firing reduction.  Stay tuned for this month's pot which features previous glazes of the month:  Blue Moon, Lime Green and Sassy Fat White/Silver Slither, in addition to this month's Midnight Blue.  

Forbes Midnight Blue Glaze

Frit 3110                          68%
Custer Feldspar                18%
EPK (Kaolin)                      9%
Lithium Carbonate               5%
Copper Carbonate               4%
Cobalt Carbonate                2%
Hectorite                            2% (or Bentonite 1%)

Raku Glaze, Press & News

March Glaze: Forbes Lime Green

As shown fired to 2000F with pyrometer so the silver glaze will melt.

RAKU POTTERY GLAZE RECIPE

Frit 3110                     54%
Nepheline Syenite    21%
EPK (Kaolin)               10%
Silica                           10%
Lithium Carbonate     5%
Add:
Chrome                       .4% (that's point 4)
Tin                               3%
Hectorite                     2%  (or 1 Bentonite dry mixed)

A note about Hectorite:  It's a suspender in powder form similar to Bentonite except it doesn't have to be dry mixed with the other chemicals.  It's not a common raku pottery glaze chemical and you may have to search for it on the web. I purchased mine at Highwater Clays, but they don't carry it anymore due to lack of demand (nobody knew what it was used for).