Albany Slip Clay Substitute:
 Sheffield Pottery
Incorporated has developed an Albany slip substitute
utilizing a native glacial clay (see Sheffield clay) blended with an
assorted amount of fluxing agents.
It is thoroughly tested and yields a
glaze designed to duplicate 100% Albany at cone 6-10
If the Albany Slip was a large percentage or even 100% as a glaze,
you can use our ALBANY SUBSTITUTE.
Albany
Slip Clay was used extensively to create stoneware, eathenware and salt
glazed pottery from the early 1800s until the mine was closed in 1986.
It was also commonly used over cast porcelain insulators and other
utilitarian objects alone and in combination with other high-iron
glazes. As a glaze or glaze ingredient it creates dark brown as seen on
early American jugs, salt glazed pottery and stoneware pots. Albany
slip was also used to glaze the insides of pots as it's hard glassy
finish made it ideal for food storage.
Our Albany Substitute is is a glaze formula
based on Sheffield Slip Clay. Our slip produces a rich
brown semi glossy glaze It is thoroughly tested and yields a
glaze designed to duplicate 100% Albany at cone 6-10 in both reduction and oxidation firings.
(See test firings below.)
If the Albany Slip was a large percentage or even 100% as a glaze,
you can use our ALBANY SUBSTITUTE.
Depending on the
application the formula can be used as a component in various
temperature glazes including tenmoku (or temmoku: Jian Yao) and bean pot glazes.
Please send in pictures of what you make with it !
Shown above right: Unsigned 19th Century Jug with typical application of Albany Slip Glaze.
Shown below: Cone 6 Oxidation Fired Samples of various commercially available Albany Slip Substitutes over Sheffield Porcelain showing similarity of Sheffield Albany Slip Substitute and original Albany Slip.
 The chemistry of Sheffield Pottery Albany Slip Substitute.
SHEFFIELD ALBANY
SUBSTITUTE
CHEMICAL ANALYSIS
wt
%
SiO2
55.93
AL2O3
21.15
FeO
05.25
Fe2O3
03.48
MgO
03.87
CaO
03.50
K2O
04.44
Na2O
01.32
TiO2
01.06
EMPERICAL
FORMULA
K2O
0.242
Na20
0.072
CaO
0.190
MgO
0.210
FeO
0.286
AL2O3
1.151
Fe2O3
0.189
TiO2
0.058
SiO2
3.040
Prices for Albany Slip Substitute: RMALBSUB:
1 lb $2.30 / pound
5 lb $2.20
10lb $2.10
25lb $2.00
1-9 x 50lb Bags $30.00 / bag
10-39 x 50 lb bags $29.00
40-119 x 50lb bags $28.00
120-239 x 50lb bags $27.00
240+ 50lb bags $26.00
Please Call Us Toll-Free at 888.774.2529 to order large quantities.
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