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john post re: glaze test questions/adjusting gerstley

updated mon 9 aug 99

 

Khaimraj Seepersad on sun 8 aug 99

Good afternoon , to All ,
To : Mr John Post ,
Gerstly Borate is one of the easiest compounds to frit and would
only require a test kiln and ball mill .
All you need is an oxide breakdown , and combine .
No need to regret the loss of the old stuff , just make it artificially
for yourself .
Khaimraj Seepersad



John Post said -

When I recalculate the glaze using frit 3134 as a substitute the fired
quality of the glaze changes. It leaves me wishing for a supplier who
would actually make a frit from the Gerstley itself instead of using Borax
as the source of B2O3 in the frit. I want a frit that has all of GB's
trace elements in it. These trace elements in the Gerstley seem to give it
some of its unique visual qualities when fired.----------------------

snip
--------------------------------------------- Hence my wish for
a nice fritted version of the stuff...

regards...
John Post
Sterling Heights, Michigan

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