Alisa og Claus Clausen on wed 23 jan 02
Glaze test for Glaze test for Floating Green, cone 6, oxidation
Source: www.frogpondpottery.com
Credited to:John Hesselberth
All tests fired on white, iron flecked, mid-range stoneware.
Fired to cone 6 (1220c) in oxidation.
Firing ramp:
100c (212f) per hour to 600c (1112f)
150c (302f) per hour to 1100c (2012f)
100c per hour to 1220c (2228f)
15 - 30 minute soak depending on matts and glosses used.
cool down 100c per hour to 900c.
Natural cool down to 150c (approximately 15 hours)
Recipe:
30 Nephelite Syenite
21 Gerstely Borate
8 Whiting
10 Kaolin
31 Silica
ADD
2.0 Chrome oxide
1. Cobalt oxide
Note:
All raw materials measured up or down to nearest whole decimal.
Oxides used on percent basis to a 100 gram batch of glaze.
Substitutions:
Resulted in:
A extraordinary smooth gloss that is silk like in feel. Color is a deep
green ground with a veil of dark blue, giving
the illusion of a very deep teal at first glance. Upon closer inspection,
this glaze has a very exciting surface. It has
two layers of color optically playing together, on an icy smooth surface.
Regards from Alisa in Denmark
John Hesselberth on wed 23 jan 02
on 1/23/02 3:28 PM, Alisa og Claus Clausen at aliskin@MAIL.DK wrote:
> Glaze test for Glaze test for Floating Green, cone 6, oxidation
>
> Source: www.frogpondpottery.com
> Credited to:John Hesselberth
Hi Alisa,
Thanks for the credit, but it doesn't belong to me. I don't know the
original source of the Floating Green glaze, but the leach testing of it was
done by Diane Woloshyn. With her permission I just posted her results on my
site along with other tested glazes. Diane may have developed it herself--I
just don't know.
Regards,
John
web sites: http://www.masteringglazes.com and http://www.frogpondpottery.com
EMail: john@frogpondpottery.com
"It is, perhaps, still necessary to say that the very best glazes cannot
conceal badly shaped pots..." David Green, Pottery Glazes
Diane Woloshyn on fri 25 jan 02
Thanks John, but I didn't develop this glaze, only tested it. Don't know
where it came from.
Diane Florida Bird Lady
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