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Pioneer Kaolin

Medium plasticity kaolin

Alternate Names: Georgia Kaolin

OxideAnalysisFormula
CaO0.20%0.009
MgO0.10%0.007
Na2O0.10%0.004
TiO21.40%0.047
Al2O338.30%1.000
SiO245.40%2.012
Fe2O30.40%0.007
LOI13.96
Oxide Weight228.77
Formula Weight265.89
If this formula is not unified correctly please contact us.

There have been some rumors during 2012 that this material will be discontinued, however as of June 2012 Imerys was insisting that there are no such plans.

Pioneer clay is used in pressing, casting and extruding bodies. Its fires fairly white and provides moderate to good dry strength. Its chemistry is very close to theoretical kaolin.

Pioneer Kaolin has been a standard for many years in the North American ceramic industry and bodies and glazes.

Typical physical properties as per data sheet TD-49R

Particle size, % < 2 microns 55-65
Mean particle size (microns) 1.0-1.2
325 mesh residue, % max .75
pH, 20% solids 4.0-6.5
Strength (dry M.O.R.), psi
-50:50 clay:flint 300-400
Cone 10 (M.O.R.), psi
-50:50 clay:flint 2500-3000
Cone 10 absorption, % 18-20
Moisture, % max 3.0
Color (fired), Cone 8 100% clay
-brightness, % MgO 85.1
-whiteness index 18.8
P.C.E. Cone 34
C.E.C. (meq./100g) 4.5-5.5


Bulk 2500 lb bulk bags of Pioneer Kaolin

Bulk 2500 lb bulk bags of Pioneer Kaolin

The material is much less dense than most other ceramic materials (that is why these bags are so tall). When moved the powder within becomes unstable and they are prone to falling over.

Fired test bars of Pioneer Kaolin

Fired test bars of Pioneer Kaolin

Cone 10R (top) and cone 11 down to 8 oxidation (downward).

Out Bound Links

In Bound Links


By Tony Hansen

XML for Import into INSIGHT

<?xml version="1.0" encoding="UTF-8"?> <material name="Pioneer Kaolin" descrip="Medium plasticity kaolin" searchkey="Georgia Kaolin" loi="0.00" casnumber="95077-05-7"> <oxides> <oxide symbol="CaO" name="Calcium Oxide, Calcia" status="" percent="0.200" tolerance=""/> <oxide symbol="MgO" name="Magnesium Oxide, Magnesia" status="" percent="0.100" tolerance=""/> <oxide symbol="Na2O" name="Sodium Oxide, Soda" status="" percent="0.100" tolerance=""/> <oxide symbol="TiO2" name="Titanium Dioxide, Titania" status="" percent="1.400" tolerance=""/> <oxide symbol="Al2O3" name="Aluminum Oxide, Alumina" status="" percent="38.300" tolerance=""/> <oxide symbol="SiO2" name="Silicon Dioxide, Silica" status="" percent="45.400" tolerance=""/> <oxide symbol="Fe2O3" name="Iron Oxide, Ferric Oxide" status="" percent="0.400" tolerance=""/> </oxides> <volatiles> <volatile symbol="LOI" name="Loss on Ignition" percent="13.960" tolerance=""/> </volatiles> </material>


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