GA6-G1
DraftDescription
GA6-G1 is a Cone 6 Alberta Slip-based glaze formulated to reduce thermal expansion compared to standard lithium-brown recipes. By adjusting KNaO and MgO levels—specifically through the inclusion of Fr
Original Author
Tony Hansen
Usage Instructions
GA6-G1 is a Cone 6 Alberta Slip-based glaze formulated to reduce thermal expansion compared to standard lithium-brown recipes. By adjusting KNaO and MgO levels—specifically through the inclusion of Frit 3249—this formulation minimizes crazing on porcelain bodies while maintaining the aesthetic qualities of traditional Albany-type glazes. Due to the presence of lithium carbonate, the slurry may exhibit gelling, increased drying shrinkage, and potential crawling; application should be monitored for these rheological changes. To mitigate drying cracks and subsequent crawling, use a controlled ratio of raw to calcined Alberta Slip. Calcination at 1000°F (538°C) is recommended to reduce drying shrinkage while maintaining a fine particle size. While Alberta Slip typically loses 3% of its mass during roasting, a 1:1 gram substitution is generally acceptable for standard formulation purposes. Refer to master instruction GA6-A for detailed mixing protocols.