Highly melt fluid glazes can be really troublesome, in more ways than you might think.

Saturday 14th June 2014

An example of a highly fluid glaze melt that has pooled in the bottom of a bowl. While it may be decorative, this effect comes at a cost. The fluidity is partly a product of high insight-live.com/picture/1775">KNaO, not surprisingly it is crazing like mad! The crazing weakens the piece, much, much more than you might think. Those cracks in that thick layer at the bottom are deep, they want to continue down into the body and will do so at the first opportunity (e.g. sudden temperature change, bump). Also, fluid glazes like this are much more likely to leach. Commercial glazes like these are not somehow exempt, they can have the same issues.

Pages that reference this post in the Digitalfire Reference Library:

Melt Fluidity, Transparent Glazes

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