joyce on fri 16 nov 07
At 08:26 PM 11/14/2007, you wrote:
>The first glaze looks like it might be durable but - the 5% cobalt may be
>too much for a liner glaze.
>
>The second on has a very low calculated expansion - it may be a pot buster
>on some clays.
>
>The third glaze only totals 65 for the main materials - is that right?
>Barley a durable glaze and with 2 coper it will probably leach copper into
>food if used as a liner - calculated expansion is high so it will craze.
>
>I'm pretty sure I could make them all work with a frit instead of GB -
>anyone want to do the testing?
>
>RR
>
> >Here are our three most popular glazes (besides Floating Blue) that we
> >use in my ceramics classes:
> >
> >Albany Dark Blue (Black base with dark blue flecks)
> ...snip...
> >doesn't have any problems I've noticed, and Iguana crazes where it is
> >very, very thick.
> >
> >--
> >Kendra Bogert
>
>Ron Roy
>RR#4
>15084 Little Lake Road
>Brighton, Ontario
>Canada
>K0K 1H0
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