studioaptceramics Posted February 5 Report Share Posted February 5 Hi all, I have the opportunity to participate in a Raku fire where I bring in bisque fired work, glaze provided. I'm part of a cone 5 studio but could possibly fire cone 10 clay at my old studio. Neither studio would allow outside clay so I can't go for a Raku specific clay. Does it matter? And from what I've read it seems like grog is helpful. Thanks! Quote Link to comment Share on other sites More sharing options...
Dick White Posted February 5 Report Share Posted February 5 The reason most studios are picky about not allowing outside clay is because of the risks involved in the glaze firing. Earthenware bodies or glazes mistakenly put in a mid-fire glaze firing will create a terrible mess. "But the label on the box had a number 6 in the cone rating. Oh, the zero in front of the 6 was meaningful? How was I supposed to know that." (Yes, I have had that very conversation with students.) The other side of the issue is just about all bisque traditions are similar no matter the intention of the body in the final glaze firing. So, bisque firing a low-fire raku clay to cone 06-04 is no different than bisque firing a cone 5-6 clay to the same 06-04, or even a cone 10 clay bisqued to the same 06-04. My guess is if you respectfully talk with the studio management about your opportunity for the raku firing and ask them to bisque fire this non-standard body, hopefully they will understand there is no risk and accommodate your special request. Quote Link to comment Share on other sites More sharing options...
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