Oct 22, 2026: We are working on protecting our servers against the PHP2Shell vulnerability recently discovered. Servers were upgraded ahead of schedule on Oct 21. This could cause some issues. Please contact us if you encounter any.
Alternate Names: Ceraclay WTD
| Oxide | Analysis | Formula | Tolerance |
|---|---|---|---|
| CaO | 0.05% | - | |
| K2O | 3.85% | 0.12 | |
| MgO | 0.30% | 0.02 | |
| Na2O | 0.10% | - | |
| TiO2 | 0.05% | - | |
| Al2O3 | 34.50% | 1.00 | |
| SiO2 | 50.00% | 2.46 | |
| Fe2O3 | 0.75% | 0.01 | |
| LOI | 10.30% | n/a | |
| Oxide Weight | 264.90 | ||
| Formula Weight | 295.32 | ||
Particle Size Distribution:
>53 microns: 1.0 max
>10 microns: 15
<2 microns: 35
Modulus of Rupture, Kgf/cm2:
At 80% Relative Humidity: 4.0
Dried at 110C: 7.0
Casting Rate @ 65% solids (mm2/min): 6.0
% P84 Deflocculant Required for 5 Poise Slip: 0.45
1180C 1280C
Fired Absorption: 10% 2%
Fired Shrinkage: 10% 15%
Brightness: 78 75
| Minerals |
Mica
See Muscovite. |
| Minerals |
Kaolinite
The most fundamental clay mineral. This mineral is found in nature in its purest form as kaolin. How |
| Materials |
Kaolin
The purest of all clays in nature. Kaolins are used in porcelains and stonewares to impart whiteness, in glazes to supply Al2O3 and to suspend slurries. |
| Typecodes |
Kaolin
Pure clay mineral, there are many brand names of varying purity and iron content. |
![]() PayPal | No tracking, No ads, No paywall, No transient content! Just organized, concise information constantly updated and improved. Was this helpful? Consider supporting me. |
| By Tony Hansen Follow me on ![]() | ![]() |
Buy me a coffee and we can talk