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).