|Recipes||G1215U - Low Expansion Glossy Clear Cone 6
A recipe sourcing high MgO (from Ferro Frit 3249) to produce a low expansion glass resistant to crazing on lower silica porcelains.
|Recipes||G2916F - Cone 6 Stoneware/Whiteware Glossy Base Glaze
Crystal clear industrial dinnerware glaze
|Temperatures||Common frits begin melting (1400F-)|
Potters and some manufacturers fire ceramic ware twice, once to prepare it for glazing (call bisquit firing) and the second time to melt the glaze onto it.
Suspended micro-bubbles in ceramic glazes affect their transparency and depth. Sometimes they add to to aesthetics. Often not. What causes them and what to do to remove them.
A kiln firing schedule where temperature is eased to the top, then dropped quickly and held at a temperature 100-200F lower.
|Tests||Glaze Melt Fluidity - Ball Test|
Questions and suggestions to help you reason out the real cause of ceramic glaze blistering and bubbling problems and work out a solution
|Troubles||Glaze Pinholes, Pitting
Analyze the causes of ceramic glaze pinholing and pitting so your fix is dealing with the real issues, not a symptom.