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L3617 Cornwall Stone substitute vs. real Cornwall Stone

Notes

These flow tests demonstrate how similar the substitute recipe (left) is to the real material (right). 20% Frit 3134 has been added to each to enable better melting at cone 5 (they do not flow even at cone 11 without the frit). Links below provide the recipe for the substitute and outline the method of how it was derived using Digitalfire Insight software. This substitute is chemically equivalent to what we feel is the best average for the chemistry of Cornwall Stone.

L3617 Cornwall Stone substitute vs. real Cornwall Stone

Links

Articles Substituting Cornwall Stone
How to create a blend of materials to chemically substitute for another (Cornwall Stone is used as an example).
Articles A Low Cost Tester of Glaze Melt Fluidity
This device to measure glaze melt fluidity helps you better understand your glazes and materials and solve all sorts of problems.
Materials Cornwall Stone
Recipes L3617A - Synthetic Cornwall Subsitute
Glossary Glaze Chemistry
Glaze chemistry is the study of how the oxide chemistry of glazes relates to the way they fire. It accounts for color, surface, hardness, texturem, melting temperature, thermal expansion, etc.

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