Mary Lynch on fri 15 dec 00
Hello Diane in CT,
I've had concerns about lithium in glazes on functional ware and have been
using strontium instead, as suggested by another potter (maybe on Clayart?).
So far the glazes have all worked fine (using 3/4 as much strontium). I fire
to ^6 in an electric kiln.
I'm also wishing for a glaze calculation program, some of Phillip's fine
tools, and more time to work! (Santa, are you listening?)
Mary in Tennessee
Paul Lewing on fri 15 dec 00
Mary Lynch wrote:
> I've had concerns about lithium in glazes on functional ware and have been
> using strontium instead, as suggested by another potter (maybe on Clayart?).
> So far the glazes have all worked fine (using 3/4 as much strontium). I fire
> to ^6 in an electric kiln.
Mary, I'm astounded that 3/4 as much strontium carbonate substituted for
lithium carbonate is giving you the same results. Or is it that they
just "work fine" rather than working the same? That "3/4 as much
strontium carbonate" rule (actually, it's usually 70%, but close enough)
is the substitution for barium carbonate, not lithium carbonate. Barium
and strontium act somewhat alike in glazes, but lithium is a completely
different animal.
Paul Lewing, Seattle
Bacia Edelman on fri 15 dec 00
Mary Lynch wrote:
I've had concerns about lithium in glazes on functional ware and have been
using strontium instead, as suggested by another potter (maybe on Clayart?).
So far the glazes have all worked fine (using 3/4 as much strontium). I fire
to ^6 in an electric kiln.
Hi, Mary, That substitution, 3/4ths as much strontium, has been touted
here as a substitute for *barium carbonate*. As far as I knew, one would
have to do glaze calc. to really figure out a sub. for lithium. But
maybe we now have a new use for strontium.
Regards, Bacia
Bacia Edelman Madison, Wisconsin
http://www.mypots.com/bacia.htm
http://www.silverhawk5.com/edelman/index.html
ferenc jakab on sun 17 dec 00
> I've had concerns about lithium in glazes on functional ware and have been
> using strontium instead, as suggested by another potter (maybe on
Clayart?).
> So far the glazes have all worked fine (using 3/4 as much strontium). I
fire
> to ^6 in an electric kiln.
>
> I'm also wishing for a glaze calculation program, some of Phillip's fine
> tools, and more time to work! (Santa, are you listening?)
>
Mary,
Are you serious? Strontium as a safe substitute for lithium?
Feri.
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