Ilene Mahler on wed 7 nov 01
Does anyone have this glaze and has used it in cone 10 oxidation..I
w3ant to use it on the undersides of hand built or slab forms It will be
used with crystalline glazes on the inside...I use a clear on the
outside and as carefull as I am not compulsive It drips from the rim and
is not a very proffessioal looking finished piece ...I can get a copy in
Jan..But I want to use this week..Thanks in advance..Ilene from
conn...crazy trying to fire price and get things to galleries,,,Where is
that extra week that I need
david mcbeth on wed 7 nov 01
TOSHIKO SEMI-MATTE BLACK Cone 10
Fona F-4 Spar 374 grams
kaolin 187
Cornawall Stone 187
Whiting 187
Zinc Oxide 65
Bentonite 20
Red iron oxide 200
Cobalt Carbonate 50
Manganese Carb 10
.....from The Penland School of Crafts Book of Pottery, John Coyne, Ed.
page 13
hope this is one glaze you are looking for
David McBeth, MFA
Associate Professor of Art
330 B Gooch Hall
Department of Visual and Theatre Art
University of Tennessee at Martin
Martin, Tennessee 38238
731-587-7416
Wade Blocker on wed 7 nov 01
Here is the recipe:
Toshiko's semi Matte Black cone 9 to 10, oxidation or reduction (CM Jan
84,page 11)
Kona F 4 spar (soda spar) 37.4
Kaolin 18.7
Cornwall stone 18.7
Whiting 18.7
Zinc oxide 6.5
Bentonite 2.0
add
red Fe oxide 20.0
Cobalt carb 5.0
Manganese carb 1.00
The glaze without oxide additions can be used by itself as Toshiko semi
matte white. Both great glazes.
Mia in ABQ
Ron Roy on thu 8 nov 01
Not a durable glaze - way low in silica - even worse in reduction cause the
iron fluxes.
As a white without the colours it is still low in silica.
On the other hand - if the ZnO leaves the picture changes - you should test
it with and with out the ZnO.
No toxins that are a problem in the glaze but it may change in use - OK I
know it will change in use because of all that iron.
Beware the dust and fumes from Manganese dioxide and Manganese carbonate
when mixing and firing.
RR
>Toshiko's semi Matte Black cone 9 to 10, oxidation or reduction (CM Jan
>84,page 11)
>
>Kona F 4 spar (soda spar) 37.4
>Kaolin 18.7
>Cornwall stone 18.7
>Whiting 18.7
>Zinc oxide 6.5
>Bentonite 2.0
>
>add
> red Fe oxide 20.0
>Cobalt carb 5.0
>Manganese carb 1.00
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
Ilene Mahler on fri 9 nov 01
Thanks will it be okay to brush and does it run..Thanks Ilene
Ron Roy wrote:
>
> Not a durable glaze - way low in silica - even worse in reduction cause the
> iron fluxes.
>
> As a white without the colours it is still low in silica.
>
> On the other hand - if the ZnO leaves the picture changes - you should test
> it with and with out the ZnO.
>
> No toxins that are a problem in the glaze but it may change in use - OK I
> know it will change in use because of all that iron.
>
> Beware the dust and fumes from Manganese dioxide and Manganese carbonate
> when mixing and firing.
>
> RR
>
> >Toshiko's semi Matte Black cone 9 to 10, oxidation or reduction (CM Jan
> >84,page 11)
> >
> >Kona F 4 spar (soda spar) 37.4
> >Kaolin 18.7
> >Cornwall stone 18.7
> >Whiting 18.7
> >Zinc oxide 6.5
> >Bentonite 2.0
> >
> >add
> > red Fe oxide 20.0
> >Cobalt carb 5.0
> >Manganese carb 1.00
>
> 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
>
> ______________________________________________________________________________
> Send postings to clayart@lsv.ceramics.org
>
> You may look at the archives for the list or change your subscription
> settings from http://www.ceramics.org/clayart/
>
> Moderator of the list is Mel Jacobson who may be reached at melpots@pclink.com.
| |
|
