Maridel Crawford-Brown on mon 5 oct 98
I have been following the thread on floating blue/rutile, etc. We use a
floating blue (Cone 5-6) which has both rutile and gerstley boarte in it.
On the last two firings used over a brown stoneware body it went sapphire
blue in one instance and a dirty khaki/green brown in another. Any ideas as
to what went "off"? It has lost its floating look as well.
Does GB decompse or deteriorate over time? We are using the same bag of that.
Regards
Maridel
Greg Lamont on tue 6 oct 98
Hi Maridel,
My experience with the original recipe indicates that it does have
something to do with the GB, coupled with thickness of application--the
thicker the application, the greater the tendency to go "snot green". I've
not had that problem since switching to a formulation that reduces the
amount of GB. See my other posts today for more.
Regards,
At 10:32 AM 10/5/98 EDT, you wrote:
>----------------------------Original message----------------------------
>I have been following the thread on floating blue/rutile, etc. We use a
>floating blue (Cone 5-6) which has both rutile and gerstley boarte in it.
>On the last two firings used over a brown stoneware body it went sapphire
>blue in one instance and a dirty khaki/green brown in another. Any ideas as
>to what went "off"? It has lost its floating look as well.
>Does GB decompse or deteriorate over time? We are using the same bag of that.
>Regards
>Maridel
>
Greg Lamont
3011 Northwood Dr.
Ames, Iowa 50010-4750
515/233-3442
gdlamont@iastate.edu
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