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G1947U pales in comparison with the brilliantly transparent results possible at lower temperature. Can we improve it?
Project Name Develop a Better Cone 10R Transparent Project Codenumber UnAssigned Notes G1947U was developed from a transparent glaze original used for porcelain insulator manufacture. To create G1947U I changed that recipe to source CaO from wollastonite instead of calcium carbonate and added a little zinc to start melting earlier. |
Cone 10R Transparent Base
Total:100.00
Notes *This glaze can be used in oxidation or reduction for a crystal clear. It works well in reduction on whiteware bodies like Plainsman P580 and P590 and is also good on all other high temperature stonewares (even iron reduction). Pictures G1947U Cone 10R Transparent Base glaze cone ![]() On H550, H570 at cone 10R ![]() On H550, H570 at cone 10R On H450, P600 at cone 10 oxidation ![]() On H450, P600 at cone 10 oxidation Glaze cones fired in April 2012 con ![]() Glaze cones fired in April 2012 cone 10R. kiln, shelf B6. Glaze cone clay is P700 P5797. The glaze cone on the left uses E.P.Kaolin for kaolin portion of recipe and glaze cone on right uses Grolleg Kaolin for kaolin portion of recipe.\nLooking to achieve \"bluish\" hue in color of glaze using the Grolleg Kaolin in glaze recipe instead of E.P.K. and is evident in photo this is confirmed. Color may be a little enhanced with light shade adjusted but this is being done to enhance what you can actually see in real life as there is a definite bluish hue to the Grolleg kaolin based recipe of this glaze. 1947U on Crystal Ice cone 10 ![]() Typecodes ST-Untitled typecode Alternate Code Number:GS10-C XML (to paste into Insight) <?xml version="1.0"?> <recipes version="1.0" encoding="UTF-8"> <recipe name="Cone 10R Transparent Base" id="63912" key="W6yom2B6" date="2015-04-13" typecodes="ST" codenum="G1947U" picturebasename=""> <recipelines> <recipeline material="Custer Feldspar" amount="27.000"/> <recipeline material="EP Kaolin" amount="20.500"/> <recipeline material="Silica" amount="26.500"/> <recipeline material="Wollastonite" amount="23.500"/> <recipeline material="Zinc Oxide" amount="2.500"/> </recipelines> </recipe> </recipes> Born: 1994-06-30, Modified: 2015-04-13 13:30:07 |
Fritted version of G1947U #1
Total:120.00 Auto Unity Formula
Notes *This changes G1947U as follows: Pictures G3910 ball melt test (vs. G1947U) ![]() G3910 Transparent flow test (vs. G1947U) ![]() G1947U, G3910 ON H443 AT CONE 10R ![]() G1947U, G3910 ON H550 AT CONE 10R ![]() The opacity in G1947U can really be noticed with side-by-side with G3910. G1947U stains, G3910 does not ![]() Felt pen, cleaned with acetone. Cone 6 melt comparison G1947U/G3910 ![]() Cone 10ox comparison G3910/G3910 ![]() Typecodes ST-Untitled typecode Alternate Code Number:GS10-C XML (to paste into Insight) <?xml version="1.0"?> <recipes version="1.0" encoding="UTF-8"> <recipe name="Fritted version of G1947U #1" id="186159" key="f1fXjbtp" date="2020-12-29" typecodes="ST" codenum="G3910" picturebasename=""> <recipelines> <recipeline material="Ferro Frit 3110" amount="28.500"/> <recipeline material="Calcined Kaolin" amount="12.500"/> <recipeline material="Ferro Frit 3249" amount="4.500"/> <recipeline material="EP Kaolin" amount="18.500"/> <recipeline material="Silica" amount="35.500"/> <recipeline material="Wollastonite" amount="20.500"/> </recipelines> </recipe> </recipes> Born: 1994-06-30, Modified: 2020-12-29 08:57:53 |
Fritted version of G1947U #2
Total:100.00 Auto Unity Formula
Notes *Changes G3910 as follows: Pictures Typecodes ST-Untitled typecode Alternate Code Number:GS10-C XML (to paste into Insight) <?xml version="1.0"?> <recipes version="1.0" encoding="UTF-8"> <recipe name="Fritted version of G1947U #2" id="188286" key="7xzPQqvr" date="2020-12-24" typecodes="ST" codenum="G3910A" picturebasename=""> <recipelines> <recipeline material="Ferro Frit 3110" amount="21.800"/> <recipeline material="Ferro Frit 3249" amount="3.600"/> <recipeline material="Grolleg Kaolin" amount="25.900"/> <recipeline material="Silica 400 mesh" lookup="Silica" amount="32.100"/> <recipeline material="Wollastonite" amount="16.600"/> </recipelines> </recipe> </recipes> Born: 1994-06-30, Modified: 2020-12-24 13:29:33 |