Andrew S Lubow on sat 2 nov 96
I found a reference to a Synthetic Albany Slip Formula in the October
1988 issue of Ceramics Monthly. Unfortunately my Community College's
Library does not have that back issue. Can anybody pull that formula and
post it here?
Akita-jin \"Lee Love\" on mon 4 nov 96
Alberta Slip is an excellent substitute. Seems to have just a little
less Iron than Albany. Works good in salt/wood fire straight up. Is
forgiving of temp. variation.
Lee
Andrew S Lubow wrote:
>
> ----------------------------Original message----------------------------
> I found a reference to a Synthetic Albany Slip Formula in the October
> 1988 issue of Ceramics Monthly. Unfortunately my Community College's
> Library does not have that back issue. Can anybody pull that formula and
> post it here?
--
====================================================
/(o\ Lee Love In "St. Paul", MN ' Come see some pixs of my AkitaPup:
\o)/ mailto:LeeLove@millcomm.com ' http://www.millcomm.com/~leelove
mailto:Akita-jin@Bigfoot.com ' "It gets late early out there."
-Yogi Berra-
Dennis H. Davis on mon 4 nov 96
At 11:01 PM 11/2/96 EST, you wrote:
>----------------------------Original message----------------------------
>I found a reference to a Synthetic Albany Slip Formula in the October
>1988 issue of Ceramics Monthly - - - - -
>-----------------------------------------------------------------------------
Ceramics Monthly, October 1988, Pg 49: Synthetic Albany Slip by Gerald Rowan.
Synthetic Albany Slip 1: Dolomite 8.5%
Pearl Ash 4.0
Soda Ash 1.0
Unwashed Softwood Ash 10.5
Kentucky Ball Clay (OM-4) 50.0
Flint 20.0
Red Iron Oxide 6.0
100.0%
Synthetic Albany Slip 2: Dolomite 9%
Soda Ash 1
Cedar Heights Redart Clay 90
100%
Synthetic Albany SLip 3: Dolomite 9%
Soda Ash 1
Cedar Heights Redart
Terra Sigillata 90
100%
Gerald Rowan: "Syn Alb 1 & 2 work well in slip and engobe recipes, but my
favorite is #3. It works at the widest temp range, reacts well in both
reduction and oxidation, and is consistent in most of my slip, engobe, and
glaze recipes; it also melts at Cone 6 with no additions."
>
Same Issue: An Albany Substitute by Michael Smyser
Albany Slip Substitute: Dolomite 0.94%
Soda Ash 0.38
Whiting 4.25
Cedar Heights Redart Clay 94.43
100.00%
Dennis in Stafford, VA
dhdavis@erols.com
(540)659-2790
Richard Burkett on mon 4 nov 96
This comes up periodically. Here's a recipe to start with, although a better
tactic is to recalculate the whole glaze:
Glaze name: Albany substitute 4
Cone: 6 - 7 - 8 - 9 - 10
Color: brown
Testing: tested
Surface texture: shiny
Firing: Ox. or Red.
Glaze type: slipglaze
Recipe: Percent Batch
RedArt Clay 35.44 1772
Custer Feldspar 8.69 434
Calcined Kaolin 9.73 487
Dolomite 13.05 652
Whiting 4.04 202
Flint 26.20 1310
Pearl Ash 0.71 36
Red Iron Oxide 1.75 88
Rutile 0.39 20
Totals: 100.00 % 5000 Gm
Comments:
The Pearl Ash is such a small quantity that it can probably be
omitted. This was calculated from what I believe is an older analysis
of Albany Slip. Richard Burkett 4/24/89
Unity Formula for Albany substitute 4:
0.124 K2O 0.489 Al2O3 4.292 SiO2
0.026 Na2O 0.112 Fe2O3 0.052 TiO2
0.481 CaO 8.8:1 Si:Al Ratio
0.369 MgO
Percentage Analysis:
66.99 % SiO2
12.95 % Al2O3
3.04 % K2O
0.42 % Na2O
7.01 % CaO
3.87 % MgO
4.65 % Fe2O3
1.08 % TiO2
Richard Burkett - School of Art, Design, & A.H, SDSU, San Diego, CA 92182-4805
E-mail: richard.burkett@sdsu.edu <-> Voice mail: (619) 594-6201
Home Page: http://rohan.sdsu.edu/dept/rburkett/www/burkett.html
CeramicsWeb: http://apple.sdsu.edu/ceramicsweb/index.html
William Amsterlaw on mon 4 nov 96
For Andrew Lubow, who wrote:
>>
I found a reference to a Synthetic Albany Slip Formula in the
October 1988 issue of Ceramics Monthly. Unfortunately my
Community College's Library does not have that back issue. Can
anybody pull that formula and post it here?
<<
I offer some of my notes on synthetic Albany slip....
- Bill Amsterlaw (wamster@msn.com)
Plattsburgh, NY
------------------------------------------------------------------------------
---------------------------------
Ceramics Monthly (Oct 1988). 36(8): 49-50 contains a group of
3 short articles on synthetic Albany Slip written by Gerald
Rowan, Michael Smyser, and Tony Hansen. The following sums up
the info in these three articles:
The compositions of Albany compared to Cedar Heights Redart:
oxide Albany Redart
SiO2 57.6 64.27
Al2O3 14.6 16.41
Fe2O3 5.2 7.04
TiO2 0.4 1.06
CaO 5.8 0.23
MgO 2.7 1.55
K2O 3.2 4.07
Na2O 0.8 0.40
Synthetic Albany Slip #1 (Gerald Rowan):
Dolomite 8.5%
Pearl Ash 4.0
Soda Ash 1.0
Unwashed Softwood Ash 10.5
Kentucky Ball Clay (OM4) 50.0
Flint 20.0
Red Iron Oxide 6.0
Synthetic Albany Slip #2 (Gerald Rowan):
Dolomite 9%
Soda Ash 1
Cedar Heights Redart Clay 90
Synthetic Albany Slip #3 (Gerald Rowan):
Dolomite 9%
Soda Ash 1
Cedar Heights Redart TS* 90
*TS = terra sigillata made from Cedar Heights Redart
(To determine the weight of clay in the liquid TS,
weigh a given volume of water and the same volume of TS:
The difference in weight is the weight of the clay content.)
Albany Slip Substitute (Michael Smyser):
Dolomite 0.94%
Soda Ash 0.38
Whiting 4.25
Cedar Heights Redart Clay 94.43
Alberta Slip (Tony Hansen):
Talc 7.0%
Whiting 9.5
Nepheline Syenite 14.0
Redearth Clay * 67.5
Black Iron Oxide 2.0
* Redearth clay from IMC in Medicine Hat, Alberta
Synthetic Esturine Mud SEM/92 "HARROW ALBANY SLIP"
(from Victor Bryant 100672.2103@compuserve.com):
(simplified recipe)
Feldspar FFF 12.48 12
Dolomite 13.35 13
Whiting 2.77 3
Ball Clay 30.69 31
Red Clay 22.59 23
Red Iron Oxide 3.06 3
Flint 14.72 15
Titanium dioxide 0.34 0.5
Manganese dioxide 0.20 0.5
On Tue, 27 Jun 1995 Richard Burkett wrote:
>>
Tom Buck's suggestion for a substitute for Albany slip that uses red iron
oxide will most probably give an unsatisfactory result unless ball milled.
A better solution is to use a clay that is already high in iron oxide. RedArt
works reasonably well. I posted an Albany substitute here some time ago (check
the ClayArt archives) and it was also printed in CM several years ago.
The best solution is to recalculate the whole glaze recipe, not just the
Albany slip formula, using an iron containing clay.
<<
Susan Maguire on mon 4 nov 96
Hay Andrew, Here goes with your formulas
Synthetic Albany Slip #1
Dolomite.............8.5%
Pearl Ash............4.0
Soda Ash ...........1.0
Unwashed Softwood Ash.....10.5%
Kentucky Ball Clay (OM4)........50.00
Flint....................20.0
RIO..................6.0
-----------------
100%
Synthetic Albany Slip #2
Dolomite.......................9.00%
Soda Ash.......................1.00
Cedar Heights Redart Clay......90.00
_________
100%
Synthetic Albany Slip #3
Dolomite............9%
Soda Ash ..........1
Cedar Heights Redart
Terra Sigillata...90
_______
100%
Synthetic Albany 1 & 2 work well in slip and engobe recipes, but
the authors favorite is Synthetic Albany #3. It works at the widest
temperature range, reacts well in both reduction and oxidation, and is
consistent in most of his slip engobe and glaze recipes: it also melts
at Cone 6 with no additions.
There is allot more information in this article.. Let me know if you
need anything further regarding Albany.
Susan Maguire, Fort Lauderdale, Florida
smaguire@bcfreenet.seflin.lib.fl.us
On Sat, 2 Nov 1996, Andrew S Lubow wrote:
> ----------------------------Original message----------------------------
> I found a reference to a Synthetic Albany Slip Formula in the October
> 1988 issue of Ceramics Monthly. Unfortunately my Community College's
> Library does not have that back issue. Can anybody pull that formula and
> post it here?
>
Sam Cuttell on sun 10 nov 96
>
>Synthetic Esturine Mud SEM/92 "HARROW ALBANY SLIP"
>(from Victor Bryant 100672.2103@compuserve.com):
> (simplified recipe)
>Feldspar FFF 12.48 12
>Dolomite 13.35 13
>Whiting 2.77 3
>Ball Clay 30.69 31
>Red Clay 22.59 23
>Red Iron Oxide 3.06 3
>Flint 14.72 15
>Titanium dioxide 0.34 0.5
>Manganese dioxide 0.20 0.5
>
What kind of Feldspar is "FFF"? Is it similar to something
I might already have (Kona F4, Custer and Cornwall Stone)?
I would like to test this recipe without having to drive
to Oakville for 1 ingredient.
TIA for all your help.
sam - alias the cat lady
Home of Manx cats, Cavalier King Charles Spaniels and the odd horse
Melbourne, Ontario, CANADA
(SW Ontario)
http://www.geocities.com/paris/3110
Richard Burkett on mon 11 nov 96
sam - alias the cat lady asks about Feldspar FFF:
>What kind of Feldspar is "FFF"? Is it similar to something
>I might already have (Kona F4, Custer and Cornwall Stone)?
You can find the analysis for Feldspar FFF on the CeramicsWeb (that's one of
the reasons I set it up - to answer this type of question). It would be
classed as a potash feldspar. You might try Custer, although a recalculation
of the recipe might give the the best result.
Feldspar FFF
Silica/Alumina ratio: 6.0:1
Equivalent Molecular Weight: 561.811
Molecular Formula of Feldspar FFF:
K2O 0.502 Al2O3 1.049 SiO2 6.259
Na2O 0.454 Fe2O3 0.005 LOI 0.032
CaO 0.030
MgO 0.014
Percentage Analysis
66.91 % SiO2
19.03 % Al2O3
8.42 % K2O
5.01 % Na2O
0.10 % MgO
0.30 % CaO
0.13 % Fe2O3
0.10 % L.O.I.
______________
100 % TOTAL
Comments:
Orthoclase - UK material
England
-----------
richard
Richard Burkett - School of Art, Design, & A.H, SDSU, San Diego, CA 92182-4805
E-mail: richard.burkett@sdsu.edu <-> Voice mail: (619) 594-6201
Home Page: http://rohan.sdsu.edu/dept/rburkett/www/burkett.html
CeramicsWeb: http://apple.sdsu.edu/ceramicsweb/index.html
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