| Monthly Tech-Tip | No tracking! No ads! | 
Description: Thailand Ball Clay
| Oxide | Analysis | Formula | Tolerance | 
|---|---|---|---|
| CaO | 0.30% | 0.02 | |
| K2O | 2.40% | 0.11 | |
| MgO | 1.30% | 0.14 | |
| Na2O | 0.80% | 0.06 | |
| TiO2 | 0.70% | 0.04 | |
| Al2O3 | 23.60% | 1.00 | |
| SiO2 | 58.80% | 4.23 | |
| Fe2O3 | 1.60% | 0.04 | |
| LOI | 6.40% | n/a | |
| C | 0.10% | n/a | |
| Oxide Weight | 386.82 | ||
| Formula Weight | 413.71 | ||
Particle Size (e.s.d.)
  125 microns - 1.0
   20 microns - 99
    2 microns - 74
   .5 microns - 48
Modulus of Rupture at 110C
  Mn/M2 - 7.8
  lbf/in2 - 1130
Water Absorption
  1120C - 0.0
  1220C - 0.5
Shrinkage Dry to Fired
  1120C - 11.5
  1220C - 8.5
| Typecodes | Ball Clay Ball clays are abundant and very plastic and are used in all types of plastic forming bodies. They are not as white-burning or refractory as kaolins but lower in iron and fluxes than bentonites. | 
| By Tony Hansen Follow me on              |  | 
Buy me a coffee and we can talk