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Cornwall Stone was similar to feldspars in chemistry thus it makes sense that a mix of other feldspars and materials should be able to duplicate the chemistry (and thus melting behavior)
Cornwall Stone Average Analysis
Total:100.00 Auto Unity Formula
Notes *Powder is grey buff. This is the material sold for many years until Oct 2011. Pictures L3618 new Cornwall Stone vs L3617, L3619 Left: L3618 original Cornwall Stone (2011 shipment) Cornwall Stone substitute vs real material at cone 6 Flow test of L3617 Cornwall Stone substitute + 20% Frit 3134 compared to real Cornwall stone (also plus frit) XML (to paste into Insight) <?xml version="1.0"?> <recipes version="1.0" encoding="UTF-8"> <recipe name="Cornwall Stone Average Analysis" id="66271" key="57cJrRdm" date="2023-06-10" codenum="L3619" picturebasename=""> <recipelines> <recipeline material="Cornwall Stone" amount="100.000" tolerance=""/> </recipelines> </recipe> </recipes> Born: 2011-10-15, Modified: 2023-06-10 09:54:05 |
Cornwall Stone substitute #2
Total:99.99 Auto Unity Formula
Notes *The matching of Al2O3 and SiO2 oxides is not precise, when this was done originally in desktop Insight TiO2 was included in unity but in Insight-live it is not. Pictures Cornwall Stone substitute vs real material at cone 6 Flow test of L3617 Cornwall Stone substitute + 20% Frit 3134 compared to real Cornwall stone (also plus frit) L3618 new Cornwall Stone vs L3617, L3619 Left: L3618 original Cornwall Stone (2011 shipment) XML (to paste into Insight) <?xml version="1.0"?> <recipes version="1.0" encoding="UTF-8"> <recipe name="Cornwall Stone substitute #2" id="66269" key="29mWeC8o" date="2023-06-10" codenum="L3617" picturebasename=""> <recipelines> <recipeline material="Custer Feldspar" amount="30.000" tolerance=""/> <recipeline material="Nepheline Syenite" amount="24.450" tolerance=""/> <recipeline material="Dolomite" amount="0.560" tolerance=""/> <recipeline material="Wollastonite" amount="2.800" tolerance=""/> <recipeline material="Pioneer Kaolin" amount="12.730" tolerance=""/> <recipeline material="Silica" amount="29.450" tolerance=""/> </recipelines> </recipe> </recipes> Born: 2011-10-14, Modified: 2023-06-10 12:10:50 |