This table suggests materials to test as possible replacements for imported and often hard to obtain items. The first column shows the product name, the second column a brief description of the product and its uses and the third column the suggested alternative.
| Product | Description & Uses | Suggested Alternative (s) |
|---|---|---|
| Barnard Clay | A silty material with very low plasticity, used in glazes as a source of iron. | 65% Ball Clay R (BA210) blended with 35% natural red iron oxide (BA501) |
| Bell Dark Ball Clay | A very plastic ball clay used in clay and glazes. | Ball Clay FX / CA1 (BA200)or Ball Clay R (BA210) |
| Buckingham Feldspar | A fine white feldspar used in clays and glazes. | Potash Feldspar (BA350) |
| Cedar Heights Fire Clay | A raw clay used in the formulation of middle fire and high stoneware bodies. | Ball Clay R (BA210) or Feeneys Fireclay (BA361) |
| Custer Feldspar | A potassium feldspar, used as a flux in medium to high temperature glazes and bodies. | Potash Feldspar (BA350) |
| Darvan | A strong deflocculant used in casting slips | Dispex (CB80) |
| EPK Kaolin | A secondary water-washed kaolin mined in Florida. It is used to aid glaze suspension. | Eckalite 1 (BA330) or Eckalite 2 (BA331) |
| Flint | A cryptocrystalline native silica with some calcium carbonate impurity. | Silica 350 mesh (BA780) |
| Frit 14 | A leadless borosilicate frit used in glazes. | Frit 4131 (DA4131) |
| Frit Hommel 373 | A frit with a very low melting temperature, used in glazes. | Frit 4064/3531 (DA4064) |
| Feldspar G-200 | A 200 mesh ceramic feldspar used in glazes. | Potash Feldspar (BA350) |
| Goldart Clay | A highly plastic stoneware body. | Ball Clay FX (BA200)or Ball Clay R (BA210) |
| Greenstripe Clay | A medium to fine ground fireclay. | Ball Clay R (BA210) or Feeneys Fireclay (BA361) |
| Grolleg Kaolin | A blended English china clay used for translucent throwing or casting bodies. | Eckalite 1 (BA330) |
| Jordan Fireclay | A material used in the production of pottery clay bodies. | Ball Clay R (BA210) or Feeneys Fireclay (BA361) |
| Kaopaque 20 Kaolin | An extremely white firing delaminated material used in casting porcelains. | Eckalite 1 (BA330) |
| Kentucky 4 and 12 Clays | A fine grained ball clay mainly used in casting bodies. | Ball Clay FX / CA1 (BA200) or Ball Clay R (BA210) |
| Keystone Feldspar | A fine white potassium feldspar used in clays and glazes. | Potash Feldspar (BA350) |
| Kingman Feldspar | A fine white potash feldspar used in clays and glazes. | Potash Feldspar (BA350) |
| Macaloid | An off-white flaky powder made from montmorillonitic ore, used to aid glaze suspension. | Carboxy Methyl Cellulose (BA215) |
| Opax | A zirconium oxide opacifier. | Zircosil 5 Opacifier (BA960) |
| Oxford Feldspar | A low grade fine white potassium feldspar used in clays and glazes. | Potash Feldspar (BA350) |
| Pyrax Pyrophyllite | A hydrated aluminium silicate used in clay bodies. | Pyrophyllite |
| Redart Clay | A red firing earthenware clay body. | School Terra Cotta (AA325 or AR1) |
| Saggar XX Ball Clay | A fine grained secondary clay which fires to a light cream colour. | Ball Clay FX / CA1 (BA200), Ball Clay R (BA210) or Feeneys Fireclay (BA361) |
| Tennessee #5 Ball Clay | An intermediate grained, high organic ball clay with good strength and plasticity. | Ball Clay FX / CA1 (BA200), Ball Clay R (BA210) or Feeneys Fireclay (BA361) |
| Treviscoe Kaolin | A fine white kaolin used in clay bodies. | Eckalite 1 (BA330) |
| Whiting | A source of calcium used as a flux in high temperature glazes. | Calcite - Omya 10 (BA170) |
| Veegum T | A smectite blend used as a suspension aid and plasticizer. | Carboxy Methyl Cellulose (BA215) |
| Zircopax | A zirconium oxide opacifier used as an opacifier in glazes. | Zircosil 5 Opacifier (BA960) |