Ron Roy on fri 12 oct 01
Hi Alisa,
This "glaze" has about 3 times the alumina a cone 6 or 8 glaze would have
so it would be a slip.
It might start turning into a glaze at cone 10 but not shiny - definitely a
matte.
RR
>>Glaze test for: WoKa Slip Glaze, cone 6 ox. (?).
>>
>>
>>
>>All tests fired on white, mid-range stoneware.
>>Fired in 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.
>>
>>Recipe:
>>50 Nepheline Syenite
>>25 Kaolin
>>6 Wollastonite
>>19 Ball Clay
>>
>>ADD
>>12 Zircopax
Ron Roy
RR# 4
15084 Little Lake Rd..
Brighton,
Ontario, Canada
KOK 1H0
Residence 613-475-9544
Studio 613-475-3715
Fax 613-475-3513
Alisa og Claus Clausen on fri 12 oct 01
>Date: Wed, 10 Oct 2001 11:33:27 +0200
>To: Ceramic Arts Discussion List
>From: Alisa og Claus Clausen
>Subject: Glaze test for WoKa Slip Glaze, cone 6 ox. (?).
>
>
>Glaze test for: WoKa Slip Glaze, cone 6 ox. (?).
>
>
>
>All tests fired on white, mid-range stoneware.
>Fired in 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.
>
>Recipe:
>50 Nepheline Syenite
>25 Kaolin
>6 Wollastonite
>19 Ball Clay
>
>ADD
>12 Zircopax
>
>
>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:
>This is the same recipe as WoDo White glaze, but I subbed the Dolomite for
>Kaolin to try to dry it out.
>
>Resulted in:
>A very dry white glaze or a white slip with additives.
>
>I only fired it to cone 6, but maybe someone can try it higher. I think
>it could fire up to 8.
>I am just curious if the surface will be any different, more fused and
>glaze like.
>
>Next tests I will color it.
>
>The Desert slip (50 Borax/50 Zircopax, did great with colorants that are
>fluxes. The cobalt gave it a
>slightly more melted surface, with a grey and blue color. Good feel and
>handsome, understated blue.
>The stains fire more or less to the same color they are in the slurry, but
>dry as the original surface.
>
>Best regards, Alisa
>in Denmark
Glaze test for:
All tests fired on white, mid-range stoneware.
Fired in 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.
Recipe:
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:
Best regards, Alisa
in Denmark
Alisa og Claus Clausen on thu 1 nov 01
Dear Ron,
Sorry this is so delayed. Not much computer time. I need a laptop!
thanks for telling me about this mixture I made. I wanted a claylike
surface to color and paint over, a slip with harder surface. Anyway, I am
just adding and subtracting materials. I am overly anxious about the book
you are writing with John. I am just testing all his cone 6 glazes. I am
happy to have recipes that are tested. I cannot wait to get my hands on
your collaboration when it is printed.
Best regards and thanks,
Alisal
Ron Roy on fri 2 nov 01
Hi Alisa,
I am starting to talk to printers now - earliest will be Feb I think - you
will know cause it will be announced.
RR
>Dear Ron,
>Sorry this is so delayed. Not much computer time. I need a laptop!
>
>thanks for telling me about this mixture I made. I wanted a claylike
>surface to color and paint over, a slip with harder surface. Anyway, I am
>just adding and subtracting materials. I am overly anxious about the book
>you are writing with John. I am just testing all his cone 6 glazes. I am
>happy to have recipes that are tested. I cannot wait to get my hands on
>your collaboration when it is printed.
>
>Best regards and thanks,
>Alisal
Ron Roy
RR# 4
15084 Little Lake Rd..
Brighton,
Ontario, Canada
KOK 1H0
Residence 613-475-9544
Studio 613-475-3715
Fax 613-475-3513
C.Burkhart on fri 2 nov 01
Alisa wrote: > I am overly anxious about the book
>you are writing with John. I am just testing all his cone 6 glazes. I am
>happy to have recipes that are tested. I cannot wait to get my hands on
>your collaboration when it is printed.
I totally agree, Alisa. I am soon to complete my "official" schooling in
ceramics and have put together a modest studio consisting of a new Bailey
wheel, a small Skutt, a large used L&L and slab roller (recently purchased
from a Clayarter). Lots and lots of lidded buckets sit idly collecting dust
in a corner....all impatiently waiting....... waiting......waiting for this
new book that will bring them into action and add that touch of class,
er... glass. It doesn't get any better than this.
Regards,
Carolsan in MD on a fantastic 78 degree day wishing she could go to Antigua
while pondering 'if heat doesn't rise then how come it is so hot on my third
floor, tepid on the second and the furnace is in the cold basement?' Duh.
Now that ceramics is nearly completed, maybe I can sign on for physics. Not
a good idea.
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