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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. Pictures URLs A good adjustable base matte recipe XML (to paste into Insight) <?xml version="1.0"?> <recipes version="1.0" encoding="UTF-8"> <recipe name="Leach&#039;s Satin Clear Original" id="61955" key="3N5AcpQy" 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. XML (to paste into Insight) <?xml version="1.0"?> <recipes version="1.0" encoding="UTF-8"> <recipe name="Leach&#039;s Satin Clear - Craze fix" id="61966" key="MnxhpfpM" 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 |