Share from Insight-live.com (Lab Documentation and Calculation System) by Digitalfire. https://backup.digitalfire.com
See Also:
Albany Lithium brown glaze development
Our traditional version, a mix of matt G2934 with a little glossy G2926B + the iron and rutile is crawling. This is to develop a Ravenscrag or Alberta Slip version of that.
G2934:G2926B Oatmeal Cone 6
Total:108.00 Auto Unity Formula
Notes *This is no longer recommended this recipe for this color. We have found that it is too prone to crawling and it does not interact enough with darker bodies. The G3933EF is better in every way. Pictures G3933 vs G3933A at cone 6 Using the C6DHSC schedule. G3933A cone 5 Using the C5DHSC firing schedule. G3933A cone 5 on L4484D black porcelain Using the C5DHSC firing schedule. G3933A G2934:G2926B Oatmeal on dark, light body Standard cone 6 C6DHSC firing schedule on M390, M340. G3933A On M340, Coffee clay Drop and soak, 250c/hr down to 1400C. XML (to paste into Insight) <?xml version="1.0"?> <recipes version="1.0" encoding="UTF-8"> <recipe name="G2934:G2926B Oatmeal Cone 6" id="211015" key="4btkstFS" date="2024-03-13" codenum="G3933A"> <recipelines> <recipeline material="G2934 Matte Glaze" lookup="G2934" amount="80.000" tolerance=""/> <recipeline material="G2926B Glossy Glaze" lookup="G2926B" amount="20.000" tolerance=""/> <recipeline material="Red Iron Oxide" amount="1.500" added="true"/> <recipeline material="Tin Oxide" amount="5.000" added="true"/> <recipeline material="Rutile" amount="1.500" added="true"/> </recipelines> </recipe> </recipes> Born: 2021-10-27, Modified: 2024-03-13 18:03:42 |
G3933 Oatmeal Ravenscrag #2
Total:108.10 Auto Unity Formula
Notes *This is the product of an effort to achieve the warm and rich color of G3933 without the tendency to crawl. To do that we have used Ravenscrag Slip as the base and sourced MgO from dolomite and Ferro Frit frit 3249 (earlier tests sourcing MgO from talc were unsuccessful, off-gassing from the talc was puffing up the glaze with micro-bubbles). Pictures g3933D vs G3933 vs G3933E G3933E is glossy but is not puffing up like G3933D does. The original G3933 (centre) is the target surface. G3933E on porcelain, M340, M390, Coffee Clay Too glossy (this was not a slow cool firing). However there is no crawling. G3933 vs G3933E mugs G3933D has no crawling (while the G3933 has a lot). This was not a slow cool firing. g3933D vs G3933E mugs G3933D is puffing up (because of the talc). G3933E has no crawling but is a little too glossy. This was drop-and-hold but not slow cool firing. G3933 vs G3933E slow and fast cooled The G3933E has richer color than the original G3933. And it is flexible to be glossy or matte depending on cooling. G3933E Vs G3933 Slow cool firing. The G3933E is giving a better surface. Untitled Typecodes C6-Cone 6 Glazes Alternate Code Number:MG6CDM XML (to paste into Insight) <?xml version="1.0"?> <recipes version="1.0" encoding="UTF-8"> <recipe name="G3933 Oatmeal Ravenscrag #2" id="243984" key="hdh1Ldwx" date="2024-03-08" typecodes="C6" codenum="G3933E" picturebasename=""> <recipelines> <recipeline material="Ravenscrag Slip" amount="26.500" tolerance=""/> <recipeline material="Ravenscrag Slip 1000F Roast" amount="22.000" tolerance=""/> <recipeline material="Calcined Kaolin" amount="14.500" tolerance=""/> <recipeline material="Ferro Frit 3249" amount="11.500" tolerance=""/> <recipeline material="Dolomite" amount="9.700" tolerance=""/> <recipeline material="Ferro Frit 3110" amount="7.100" tolerance=""/> <recipeline material="Silica 325" lookup="Silica" amount="8.800" tolerance=""/> <recipeline material="Tin Oxide" amount="5.000" added="true"/> <recipeline material="Rutile" amount="1.500" added="true"/> <recipeline material="Red Iron Oxide" amount="1.500" added="true"/> </recipelines> </recipe> </recipes> Born: 2014-03-21, Modified: 2024-03-08 19:52:15 |
G3933 Oatmeal Ravenscrag #3
Total:108.00 Auto Unity Formula
Notes *Adds MgO. Pictures G3933E (top) vs G3933F (bottom) Fired cone 6 normal cool. G3933F on M390 slow cool firing - Too glossy G3933E vs F G2933E and G3933F. The F has a little more MgO (0.39 vs 0.35). Typecodes C6-Cone 6 Glazes Alternate Code Number:MG6CDM XML (to paste into Insight) <?xml version="1.0"?> <recipes version="1.0" encoding="UTF-8"> <recipe name="G3933 Oatmeal Ravenscrag #3" id="244534" key="ojC3viRE" date="2024-03-08" typecodes="C6" codenum="G3933F" picturebasename=""> <recipelines> <recipeline material="Ravenscrag Slip" amount="21.500" tolerance=""/> <recipeline material="Ravenscrag Slip 1000F Roast" amount="18.000" tolerance=""/> <recipeline material="Calcined Kaolin" amount="17.500" tolerance=""/> <recipeline material="Ferro Frit 3249" amount="11.000" tolerance=""/> <recipeline material="Dolomite" amount="13.000" tolerance=""/> <recipeline material="Fusion Frit F-75" amount="6.000" tolerance=""/> <recipeline material="Silica 325" lookup="Silica" amount="13.000" tolerance=""/> <recipeline material="Tin Oxide" amount="5.000" added="true"/> <recipeline material="Rutile" amount="1.500" added="true"/> <recipeline material="Red Iron Oxide" amount="1.500" added="true"/> </recipelines> </recipe> </recipes> Born: 2014-03-21, Modified: 2024-03-08 18:29:32 |
G3933 Oatmeal Ravenscrag #4
Total:108.05 Auto Unity Formula
Notes *This is now our recipe of choice. It has a better surface, produces richer brown and variegated tones on dark burning bodies, it has better application properties, it does not crawl and it is much less prone to go on too thin. Pictures G3933E vs G3933EF Cone 6 slow cool G3933E vs G3933EF Cone 6 slow cool The EF is only a tiny bit more matte. G3933A vs G3933EF Cone 6 on coffee clay, slow cool @ 250f/hr. G3933EF at cone 6 on Coffee Clay These are fired using the C6DHSC schedule. The one on the right was cooled at 150F/hr and is more matte than the one on the left (cooled 250F/hr). The one on the right is also interacting more with the Plainsman Coffee Clay underneath. Typecodes C6-Cone 6 Glazes Alternate Code Number:MG6CDM XML (to paste into Insight) <?xml version="1.0"?> <recipes version="1.0" encoding="UTF-8"> <recipe name="G3933 Oatmeal Ravenscrag #4" id="245842" key="cbWiFGQT" date="2024-03-13" typecodes="C6" codenum="G3933EF" picturebasename=""> <recipelines> <recipeline material="Ravenscrag Slip" amount="24.000" tolerance=""/> <recipeline material="Ravenscrag Slip 1000F Roast" amount="20.000" tolerance=""/> <recipeline material="Ferro Frit 3110" amount="6.550" tolerance=""/> <recipeline material="Ferro Frit 3249" amount="11.250" tolerance=""/> <recipeline material="Dolomite" amount="11.350" tolerance=""/> <recipeline material="Calcined Kaolin" amount="16.000" tolerance=""/> <recipeline material="Silica 325" lookup="Silica" amount="10.900" tolerance=""/> <recipeline material="Tin Oxide" amount="5.000" added="true"/> <recipeline material="Rutile" amount="1.500" added="true"/> <recipeline material="Red Iron Oxide" amount="1.500" added="true"/> </recipelines> </recipe> </recipes> Born: 2014-03-21, Modified: 2024-03-13 18:08:15 |