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Tony Hansen
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Low fire glazes must be able to pass the bubbles their bodies generate (or clouds of micro-bubbles will turn them white). This cone 04 flow tester makes it clear that although 3825B has a higher melt fluidity (it has flowed off onto the tile, A has not). And it has a much higher surface tension. How do I know that? The flow meets the runway at a perpendicular angle (even less), it is long and narrow and it is white (full of entrained micro-bubbles). Notice that A meanders down the runway, a broad, flat and relatively clear river. Low fire glazes must pass many more bubbles than their high temperature counterparts, the low surface tension of A aids that. A is Amaco LG-10. B is Crysanthos SG213 (Spectrum 700 behaves similar to SG13, although flowing less). However they all dry very slowly. Watch for a post on G2931J, a Ulexite/Frit-based recipe that works like A but dries on dipped ware in seconds (rather than minutes).
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How to include stains in the chemistry of a recipe in Insight-live: https://insight-live.com/show_post.php?pz=Ezi2f9ys3d

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We are starting to send out monthly informational posts to help people understand glazes (and other things). They look like this. Insight-live.com members get them (even if they have not actually paid for a subscription). We have more than a thousand. At one per month ... hmmmm. That will take a while!
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Want to learn how to make sense of a glaze formula? How does it conform to limits? Limitations of this? https://goo.gl/kjso3B

We need your patience and help. We are making major changes: Unifying the code for Insight-live.com and Digitalfire.com and moving it to git.com for better coding collaboration.

This will set the stage for major improvements: Functionality on a faster server (NginX) and the latest PHP 7 programming language. noSQL features (for speed and ease-of-use). AJAX and reflexive/responsive code framework (for small screen devices).

The scale of the changes is certainly going to mean issues. Please let us know as you encounter any that we do not catch.

Insight-live.com is not intended as a glaze recipe distribution medium. It is the place where you document your own adjustment and formulation efforts. We advocate fixing and adjusting your own recipes rather than getting caught up in the traffic in undocumented recipes.

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Want to see how how I characterize a new clay by testing a range of its physical properties here in the lab? In this section of the Digitalfire Help WebApp I show you step-by-step. I use Insight-Live at every step to record the data and document things with comments and pictures. Be warned, it is hard work. There are things to be learned and noted at every step of the way. But that is the key to success.
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