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My newly found slip-casting capabilities (because of 3D printing and design) make dark burning bodies very desirable for casting stoneware.
Coffee Clay Cone 6 Black Casting Body
Total:110.00 Notes *This is part of a project to create a casting version of Plainsman Coffee Clay. It is built on a cone 10 porcelain base recipe. The umber fluxes it to mature at slightly below cone 6. At cone 6 some of the black color has been lost. It casts exceptionally fast and releases from the mold very quickly. To get a jet black glossy functional surface for beer bottles we glaze this with the GA6-B. Pictures L4768A vs L4768D casting bottles The L4768D fire shrinks more than the L4768A. And is not quite as black. L4768D & E vs Coffe Clay fired bars Testdata SHAB - Shrinkage/Absorption
XML (to paste into Insight) <?xml version="1.0"?> <recipes version="1.0" encoding="UTF-8"> <recipe name="Coffee Clay Cone 6 Black Casting Body" id="254182" key="SFubeKzn" date="2024-10-29" codenum="L4768D"> <recipelines> <recipeline material="Opticast Kaolin" amount="55.000" tolerance=""/> <recipeline material="Nepheline Syenite" amount="20.000" tolerance=""/> <recipeline material="Silica" amount="25.000" tolerance=""/> <recipeline material="Raw Umber J4650" amount="10.000" added="true"/> </recipelines> </recipe> </recipes> Born: 2024-03-01, Modified: 2024-10-29 17:12:50 |
M390 Cone 6 C-Red Casting #1
Total:100.00 Notes *Another mix, L4558B is underway, stay tuned. Pictures L4558A M390 cast bottle vs. L4768D L4558A is not mature enough on the bottom of this slip castbottle. That being said it has plenty of firing shrinkage, so this is being heatsink by the kiln shelf. L4558A M390 vs M390 Color is not red enough. This is likely a combination insufficient vitrification and insufficient iron oxide - I will make another mix to move it in that direction. Typecodes MAS-Master Ticket Testdata SHAB - Shrinkage/Absorption
XML (to paste into Insight) <?xml version="1.0"?> <recipes version="1.0" encoding="UTF-8"> <recipe name="M390 Cone 6 C-Red Casting #1" id="225409" key="hWjkH5Dd" date="2024-04-13" typecodes="MAS" codenum="L4558A" picturebasename=""> <recipelines> <recipeline material="Opticast Kaolin" amount="36.000" tolerance=""/> <recipeline material="Silica" amount="18.000" tolerance=""/> <recipeline material="Nepheline Syenite" amount="18.000" tolerance=""/> <recipeline material="C-Red Clay" amount="28.000" tolerance=""/> </recipelines> </recipe> </recipes> Born: 2012-11-29, Modified: 2024-04-13 03:27:59 |
M390 Cone 6 C-Red Casting #2
Total:100.00 Notes *This follows L4558A, it explored the merits of using the amazing ultra-high-iron C-Red clay from IMCO (which is also refractory and excellent for slip casting). It was a little too refractory and the color development was not sufficient. This adds more Nepheline Syenite and C-Red and sacrifices some silica and kaolin. Pictures L4558B red burning casting body vs M390 These were fired to cone 6. Typecodes MAS-Master Ticket XML (to paste into Insight) <?xml version="1.0"?> <recipes version="1.0" encoding="UTF-8"> <recipe name="M390 Cone 6 C-Red Casting #2" id="255390" key="84Fabc4y" date="2024-04-13" typecodes="MAS" codenum="L4558B" picturebasename=""> <recipelines> <recipeline material="Kaopaque" amount="30.000" tolerance=""/> <recipeline material="Silica" amount="12.000" tolerance=""/> <recipeline material="Nepheline Syenite" amount="25.000" tolerance=""/> <recipeline material="C-Red Clay" amount="33.000" tolerance=""/> </recipelines> </recipe> </recipes> Born: 2012-11-29, Modified: 2024-04-13 03:28:05 |