Alisa Clausen on mon 19 nov 07
>I should remember next time that I email clayart to double check and see
>if I'm giving all of the information I can. I forgot a lot of stuff...
> >
>> Gerstley Green (A clear green, and a brighter green pools on texture and
>> where thick)
>> Gerstley 50
>> Kaolin 20
>> Flint 30
>> Red Copper Oxide 3.0%
>> Rutile 3.0%
>>
>> Iguana Green (Thin coat starts out orange, but two turns into a bright
>> and shiny turquoise or green)
>> 3110 Frit 30
>> Nephylene Syenite 20
>> Gerstley 15
>> Tin 12.5
>> Bentonite 1
>> Copper Carb 2
>>
Hi Kendra
I was just looking at these glazes. The Gerstley Green glaze is using a
fairly old base, at least from 25 years ago. At that time I remember it
being called EZ clear. Not a lot of ingredients, so if you have to sub,
you have to sub a large portion of the glazes. However, I have, just for
testing sake, subbed gram for gram, the Gerstely portion, with Frit 3124
and with Frit 169, and it was all right.
The second glaze you listed, Iguana Green. Just wondering if you have all
of ingredients. It does not have to add up to 100, but it is far below.
Bentonite can help suspension, but sometimes is added in 1 and 2 percents
to get a glaze up to unity. Is there anything else in this glaze?
Otherwise, on Glaze Master, adding up to 100 gram, it looks like this
Recipe Name: Iguana Green
Cone: 6 Color:
Firing: Surface: Glossy
Amount Ingredient
38.8 Frit--Ferro 3110
25.8 Nepheline Syenite
19.4 Gerstley Borate--1999
16 Tin Oxide
100 Total
Additives
1.7 Bentonite
3.3 Copper Oxide--Red
Unity Oxide
.519 Na2O
.079 K2O
.002 MgO
.4 CaO
1.000 Total
.308 Al2O3
.307 B2O3
0 Fe2O3
2.781 SiO2
9 Ratio
7.9 Exp
Comments:
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Calculations by GlazeMaster=99
www.masteringglazes.com
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