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Cone 6 Grolleg translucent porcelain for throwing, casting, 3D printing
Develop and maintain the recipe of your own super-white translucent porcelain body. Or compromise whiteness for workability and cost with an alternate recipe.
Project Name Dialing the desired plasticity in four cone 6 porcelains Project Codenumber UnAssigned Notes White porcelains are made from kaolin, feldspar and silica. Super-white porcelains employ expensive, low titanium, low plasticity kaolins (e.g. Grolleg, New Zealand) and thus require the help of white-burning bentonites like Veegum (3-5% in throwing bodies, ~1% in casting bodies). Ivory porcelains employ cheaper, but more plastic kaolins and can tolerate a less expensive bentonite. White stonewares employ a mix of kaolin and ball clay (to mix with the feldspar and silica). URLs Every potter needs a plaster table |
Cone 6 Translucent Grolleg Casting
Total:100.00 Notes *Because this employs Grolleg kaolin, it fires much whiter than bodies made using North American kaolins. And it will be more vitreous. Pictures L3778G cone 6 Grolleg casting body vs. others Top is this body. L3778G Grolleg cone 6 casting The glaze is GA6-B. The body fires extremely white and dense, producing stunning pieces. It is porous at bisque state and it is easy to get glazes on too thick. L3778G with GA6-B glaze fired at cone 6 Fired strength is very good (under the hammer). Rather than shatter, it simply broke cleanly into to pieces. L3778G Cone 6 Translucent Grolleg Casting fired bars L3778G vs Polar Ice - Fired bars Testdata SHAB - Shrinkage/Absorption
XML (to paste into Insight) <?xml version="1.0"?> <recipes version="1.0" encoding="UTF-8"> <recipe name="Cone 6 Translucent Grolleg Casting" id="184767" key="CtBjY1Ch" date="2022-01-15" codenum="L3778G" location="BOX53"> <recipelines> <recipeline material="Grolleg Kaolin" amount="44.000" tolerance=""/> <recipeline material="Silica" amount="25.000" tolerance=""/> <recipeline material="Nepheline Syenite" amount="30.000" tolerance=""/> <recipeline material="VeeGum" amount="1.000" tolerance=""/> </recipelines> </recipe> </recipes> Born: 2015-03-06, Modified: 2022-01-15 21:47:17 |
P300 Cone 6 Casting Body
Total:603,288.00 (R) Notes *P300 is a cone 6 plastic kaolin-only porcelain made by Plainsman Clays. This is a casting version of it. This recipe employs Pioneer Kaolin instead of #6 Tile, this only needs 1% bentonite (instead of 5% for the plastic version) and the Nepheline here has been adjusted to fine tune the maturity. Pictures G2926B after 300F:Icewater test 300:370 On P300 test mix (made with Pioneer kaolin, left), 370 next recipes. Neither crazed on the sidewalls. But P300 crazed on the bottom (as shown). P300 using Pioneer kaolin - mug bottom P6346 vs. L3906 Lab test with PIoneer P300s P6346 P300 vs L3906 P300 test bars G2926b clear not crazed after two weeks L3906 P300 Using Pioneer Kaolin fired bars Alternate Code Number:L3771J Testdata SHAB - Shrinkage/Absorption
LDW - LOI/Density/Water Content
XML (to paste into Insight) <?xml version="1.0"?> <recipes version="1.0" encoding="UTF-8"> <recipe name="P300 Cone 6 Casting Body" id="92896" key="Qf2A6K1z" date="2020-10-06" codenum="L3906" picturebasename=""> <recipelines> <recipeline material="Pioneer Kaolin" amount="12.000" tolerance="" unitabbr="50BG"/> <recipeline material="Nepheline Syenite" amount="7.000" tolerance="" unitabbr="50BG"/> <recipeline material="Silica" amount="7.000" tolerance="" unitabbr="50BG"/> <recipeline material="Talc" amount="18.000" tolerance="" unitabbr="LBS"/> <recipeline material="Bentonite" amount="12.000" unitabbr="LBS" added="true"/> </recipelines> </recipe> </recipes> Born: 2015-03-07, Modified: 2020-10-06 12:52:43 |
M370 Cone 6 Casting Body
Total:453,600.00 (R) Notes *M370 is a plastic throwing kaolin/ball clay porcelain made by Plainsman Clays. This is a casting version of it (this has no bentonite whereas the plastic version has about 4%). This recipe employs Pioneer Kaolin instead of #6 Tile (to make it easier to deflocculate and cast and release faster). Pictures G2926J1 vs. G2926B on M370F casting Very good results. L4217F casting porcelain fired at cone 6 Clear glaze G2926J1. Fired color is not as white as a kaolin-only porcelain (e.g. L3906) but this is faster to cast because the recipe does not need bentonite. L4217F fired bars 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="M370 Cone 6 Casting Body" id="163116" key="RAcwxQgY" date="2021-07-03" typecodes="MAS" codenum="L4217F" picturebasename=""> <recipelines> <recipeline material="Pioneer Kaolin" amount="2.000" tolerance="" unitabbr="50BG"/> <recipeline material="Silica" amount="5.000" tolerance="" unitabbr="50BG"/> <recipeline material="M-23 Ball Clay" amount="5.000" tolerance="" unitabbr="50BG"/> <recipeline material="Nepheline Syenite" amount="6.000" tolerance="" unitabbr="50BG"/> <recipeline material="Kaopaque" amount="2.000" tolerance="" unitabbr="50BG"/> </recipelines> </recipe> </recipes> Born: 2012-11-29, Modified: 2021-07-03 15:27:42 |
M370 Cone 6 Casting Body
Total:453,600.00 (R) Notes *This recipe improves casting properties of L4217F by using a larger particle size ball clay. And it uses pure Pioneer kaolin (rather than a mix of two kaolins). It is a little more vitreous also. But still could be better. Consider adding 1% talc to reduce the porosity to 1% at cone 6. Pictures L4217G, L3798G2, L3778G fired bars Fired from cone 8 to 4 (top to bottom). 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="M370 Cone 6 Casting Body" id="184780" key="xkgAo6nZ" date="2022-11-19" typecodes="MAS" codenum="L4217G" picturebasename=""> <recipelines> <recipeline material="Pioneer Kaolin" amount="4.000" tolerance="" unitabbr="50BG"/> <recipeline material="Silica" amount="5.000" tolerance="" unitabbr="50BG"/> <recipeline material="KT1-4 Ball Clay" amount="5.000" tolerance="" unitabbr="50BG"/> <recipeline material="Nepheline Syenite" amount="6.000" tolerance="" unitabbr="50BG"/> </recipelines> </recipe> </recipes> Born: 2012-11-29, Modified: 2022-11-19 19:49:35 |