What is Albany slip?
What is Albany slip?
Albany slip clays are low fusion point clays which melt easily. to a reddish brown glass. Their use began early in the 19th. Century, slip glazing interior and exterior surfaces of jugs, bean pots, crocks and other familiar household items.
What is Albany slip substitute?
Alberta Slip
Alberta Slip is a clay formulated to substitute for Albany Slip, which is no longer available. Like Albany, Alberta Slip is a low-melting, iron-stained clay, but it is more consistent since it is made from a blend of raw materials.
What is Albany slip glaze?
The Albany slip glaze was made from natural glacial clay discovered in Albany, New York in the early 1800s. “Slip Glaze” is the potters’ term for a glaze made by clay mixed with water. Both durable and decorative, Albany Slip was often used as an interior glaze on salt-glaze pottery and other high-fired wares.
What is Albany clay?
Albany was a low plastic silty clay that was mined in Albany, New York for many decades. It melts to a glossy chocolate brown glaze at cone 8-10. It was a very popular glaze ingredient for dark colors and tenmoku and iron crystal effects.
What happens if you layer one glaze color on top of another?
You can mix different types of glaze by layering or blending. Some glazes are not compatible. This can cause blistering, crawling, and flaking. The mixed glaze may also be less stable and prone to leaching.
Can you glaze ceramics twice?
Pottery can be reglazed and refried multiple times. Most pottery glazes need to be applied in 1-3 layers. Pottery that has already been fired with a glaze can be re-glazed and fired 2 times. After the 3rd or 4th time, pottery starts to become brittle and weak, but that’s because of the firing and not the glaze itself.
How do you make Tenmoku glaze?
By itself it is almost Tenmoku at cone 10R, it just needs 1-2% added iron and possibly 5% calcium carbonate or dolomite. Another way to make a tenmoku is to simply add 10% iron oxide to a good transparent cone 10R recipe (like G19147U).
What is Albany Slip made of?
Albany Slip was a pure mined material, Alberta Slip is a recipe of mined materials and refined minerals designed to have the same chemistry, firing behavior and raw physical appearance. Outside glaze is G2934Y black. Inside is 80% Albany clay and 20% Ferro Frit 3195, a really stunning glaze! I used the C6DHSC firing schedule.
What is the recipe for this Albany Slip mug?
The benchmark recipe is 80% clay and 20% Ferro Frit 3195. The center melt flow and mug (made from a Plainsman 3D-based stoneware) employs original Albany Slip as the clay portion. The one on the far left uses an Albany Slip substitute that was developed by calculating a mix of RedArt and other materials to have the same chemistry as Albany Slip.
What color is Albany slip clay?
Generally chocolate brown from the high iron content of the clay, the color of Albany slip could vary from to black to reddish brown and even olive green, based on various firing factors, such as an oxidizing atmosphere in the kiln, or yellowish bleaching caused by deposits of fly ash during a wood firing (Greer 1981:38).
When did Albany Slip become popular?
Use of Albany slip began in the first quarter of the nineteenth century around the Albany area, but use was widespread by mid-century (Guilland 1971:85; Greer 1981:194). Especially popular during the late nineteenth and early twentieth centuries, Albany slip was was used both on the interior and exterior of stoneware vessels (Greer 1981:194).
