Jose A. Velez on tue 15 oct 02
Ron:
> I can reformulate such glazes (you can to if you have calculation
software)
> to eliminate problematic materials - short list -
>
> Gers Borate
> EPK
> Zinc
> Magnesium carb.
>
I do not have the computer program, although I think I can do the
calculations to substitute GB and end up with the same fired composition.
Nevertheless, I do not have a lot of experience will probably take me a
while to find the right substitute. So, if you do not mind I will take you
on your offer. The glaze is very simple:
Wt. %
Gerstley Borate 50.0
Flint 32.5
EPK 17.5
I was given this years ago by a friend from W Va. and do not know the
source, so I can not give credit to the "owner". I used several colorants
on this and at least two of them have shown "crawling" on porcelain.
Thanks for your willingness to help.
Best Regards,
Jose A. Velez
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