Jasper Slip
Description: Albany Slip Substitute
| Oxide | Analysis | Formula | Tolerance |
|---|---|---|---|
| CaO | 7.10% | 0.54 | |
| K2O | 2.70% | 0.12 | |
| MgO | 2.90% | 0.31 | |
| Na2O | 0.40% | 0.03 | |
| TiO2 | 0.80% | 0.04 | |
| Al2O3 | 14.10% | 0.59 | |
| SiO2 | 55.10% | 3.92 | |
| Fe2O3 | 5.60% | 0.15 | |
| LOI | 11.30% | n/a | |
| Oxide Weight | 379.65 | ||
| Formula Weight | 428.02 | ||
Notes
United Clays recommends this as a substitute for Albany Slip. It is very plastic, much more so than Albany Slip (drying shrinkage is over 9%).
Particle size distribution (% undersize)
20um 94
10um 89
5um 79
2um 61
1um 49
0.5um 37
pH: 8.0
Fired color cone 4: Chocolate semi-gloss
Cone 6: Dark brown gloss
Cone 10: Brown translucent
Thermal Expansion: See United Clay data sheet for chart.
Related Information
Jasper slip powder
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Jasper Slip fired bars
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Fired at cone 2, 1, 02, 05 (top to bottom). Reaches zero porosity between cone 1 and 2.
Links
| Materials |
Albany Slip
A pure low plasticity clay that, by itself, melted to a glossy dark brown glaze at cone 10R. It was a popular glaze ingredient for many decades. |
| Materials |
Alberta Slip
Albany Slip successor - a plastic clay that melts to dark brown glossy at cone 10R, with a frit addition it can also host a wide range of glazes at cone 6. |
| Materials |
Arroyo Slip
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| Typecodes |
Clay Other
Clays that are not kaolins, ball clays or bentonites. For example, stoneware clays are mixtures of all of the above plus quartz, feldspar, mica and other minerals. There are also many clays that have high plasticity like bentonite but are much different mineralogically. |