Share from Insight-live.com (Lab Documentation and Calculation System) by Digitalfire.
Leach's Satin Clear Original
Total:100.00 Auto Unity Formula
Notes *This is crazing on Laguna B-mix. Neither the clay or glaze are at fault, they are simply incompatible. Still, 20% feldspar sourcing lots of KNaO plus extra KNaO coming from a frit certainly makes crazing less than a surprise for this glaze. URLs A good adjustable base matte recipe Pictures XML (to paste into Insight) <?xml version="1.0"?> <recipes version="1.0" encoding="UTF-8"> <recipe name="Leach's Satin Clear Original" id="61955" key="okFGoJ1S" date="2019-05-31" codenum="G2941A" email="j_johnsrud@hotmail.com"> <recipelines> <recipeline material="Custer Feldspar" amount="21.700" tolerance=""/> <recipeline material="Whiting" amount="21.700" tolerance=""/> <recipeline material="Silica" amount="21.700" tolerance=""/> <recipeline material="EPK" amount="21.700" tolerance=""/> <recipeline material="Ferro Frit 3124" amount="13.200" tolerance=""/> </recipelines> </recipe> </recipes> Born: 2014-10-14, Modified: 2019-05-31 12:14:43 |
Leach's Satin Clear - Craze fix
Total:100.00 Auto Unity Formula
Notes *This recipe is the product of tweaking in my Insight-live.com account. My objective was to introduce MgO (very low thermal expansion oxide) at the expense of KNaO (very high expansion). Pictures Leach's Clear crazing adjustment ![]() This substitutes MgO for some of the CaO and KNaO. It also adds a little more B2O3 for better melting. This melts just as good or better and appears to have about the same surface gloss. It would be a little more matte by raising the Al2O3, this would drive the expansion down even further. Leach's clear and craze adjustment ![]() 3mm thick x 15mm square samples fired on a porcelain tile. Left: Original Right: Adjustment. The surface is iddentical on this samples. XML (to paste into Insight) <?xml version="1.0"?> <recipes version="1.0" encoding="UTF-8"> <recipe name="Leach's Satin Clear - Craze fix" id="61966" key="w1B8RDAm" date="2019-05-31" codenum="G2941C" email="j_johnsrud@hotmail.com"> <recipelines> <recipeline material="Custer Feldspar" amount="21.485" tolerance=""/> <recipeline material="Whiting" amount="21.485" tolerance=""/> <recipeline material="Silica" amount="22.475" tolerance=""/> <recipeline material="EPK" amount="21.485" tolerance=""/> <recipeline material="Ferro Frit 3124" amount="5.149" tolerance=""/> <recipeline material="Ferro Frit 3249" amount="7.921" tolerance=""/> </recipelines> </recipe> </recipes> Born: 2014-10-16, Modified: 2019-05-31 12:12:23 |
Cone 6 Magnesia Matte Base
Total:102.06 RO Unity Formula
Notes *This matte recipe was developed at Plainsman Clays. It descends from a high-dolomite recipe that was originally used to compare shipments of dolomite for consistency. Comments 2017-09-06 This is a slight variation of the Master recipe wherein the Frit 3124 has been increased, and the Flint Silica quantity is slightly higher. URLs Prepared public do..om Plainsman Clays Pictures G2934 with Hemlock Green, Pansy Purle Stains ![]() 10 gram balls have been melt down onto a tile at cone 6. Top: G2934 with normal flow Left: 8% 6213 Hemlock Green. Needs significant flux. Right: 8% 6305 Violet stain. Flowing a little less, needs a little flux. True mattes should still be matte if overfired ![]() The G2934 is a high-MgO matte, it melts well and does not cutlery mark or stain easily. As evidence that it is a true matte, notice that it is still matte when fired to cone 7 or 8. VC71, while having a similar pleasant silky matte surface at cone 6, converts to a glossy if fired higher (suggesting that its cone 6 matteness is due to incomplete melting). For the same reason the VC71, it is whiter in color (but as soon as it begins to melt and have depth the color darkens). G2934 + 5% Titanium thinner/thicker on M390 ![]() Typecodes C6-Cone 6 Glaze XML (to paste into Insight) <?xml version="1.0"?> <recipes version="1.0" encoding="UTF-8"> <recipe name="Cone 6 Magnesia Matte Base" id="56852" key="aNux8Nz3" date="2021-02-08" typecodes="C6" codenum="G2934" picturebasename=""> <recipelines> <recipeline material="Ferro Frit 3124" amount="19.400" tolerance=""/> <recipeline material="EPK" amount="18.300" tolerance=""/> <recipeline material="Dolomite" amount="23.500" tolerance=""/> <recipeline material="Silica" amount="26.960" tolerance=""/> <recipeline material="Calcined Kaolin" amount="13.900" tolerance=""/> </recipelines> </recipe> </recipes> Born: 2014-03-21, Modified: 2021-02-08 12:52:45 |
Cone 6 Calcium Matte Base
Total:101.00 Auto Unity Formula
Notes *This is the same as G1214Z but splits the kaolin to a mix of calcined and raw (to cut drying shrinkage). Pictures Alternate Code Number:GS6-B XML (to paste into Insight) <?xml version="1.0"?> <recipes version="1.0" encoding="UTF-8"> <recipe name="Cone 6 Calcium Matte Base" id="156545" key="28NiDLKT" date="2019-05-31" codenum="G1214Z1" picturebasename=""> <recipelines> <recipeline material="Wollastonite" amount="27.000" tolerance=""/> <recipeline material="Ferro Frit 3124" amount="36.000" tolerance=""/> <recipeline material="EPK" amount="20.000" tolerance=""/> <recipeline material="Silica" amount="5.000" tolerance=""/> <recipeline material="Calcined Kaolin" amount="13.000"/> </recipelines> </recipe> </recipes> Born: 1998-04-21, Modified: 2019-05-31 12:17:54 |