RAW CLAYS

The percentages given are close estimations and should be considered only as an average. We have listed only the most commonly used raw clays in this catalog description section. If you do not find the raw clay that you are looking for, please inquire as we may have it in stock or be able to order it.

BANDY BLACK BALL CLAY
SiO2................................... 61.00%
Al2O3.................................. 24.54%
Fe2O3.................................. 0.99%
MnO.................................... 0.01%
TiO2................................... 1.29%
CaO.................................... 0.09%
MgO.................................... 0.12%
Na2O................................... 0.36%
K2O.................................... 1.69%
SO3.................................... 0.11%
P2O5................................... 0.07%
Loss on ignition....................... 9.74%
PCE.................................... Cone 31+
 
BARNARD CLAY
SiO2................................... 62.96%
Al2O................................... 24.54%
Loss on ignition........................ 9.74%
PCE.................................... Cone 29
 
BLACK CHARM BALL CLAY
SiO2.................................... 62.96%
Al2O3................................... 22.66%
Fe2O3................................... 1.53%
MnO..................................... 0.05%
TiO2.................................... 0.20%
CaO..................................... 0.33%
MgO..................................... 0.12%
Na2O.................................... 0.32%
K2O..................................... 1.34%
SO3..................................... 0.11%
P2O5.................................... 0.04%
Loss on ignition........................ 10.52%
PCE.................................... Cone 29
 
C-1 CLAY
SiO2..................................... 75.6%
Al2O3.................................... 15.8%
Fe2O3.................................... 0.4%
TiO2..................................... 0.1%
MgO...................................... 0.5%
CaO...................................... 0.8%
Na2O..................................... 0.5%
K2O...................................... 1.55%
Loss on ignition......................... 4.84%
 
EPK KAOLIN (China clay)
SiO2..................................... 46.00%
Al2O3.................................... 37.00%
Loss on ignition......................... 14.00%
PCE...................................... Cone 32


FILLER CLAY
A blend of clays formulated to replace P.V. clay where certain reactions effect deflocculation, scumming and discoloration of product.
 
 
GLOMAX LL CALCINED KAOLIN
325 MESH
SiO2....................................... 59.40%
Al2O3................................... 25.60%
TiO2..................................... 1.60%
Fe2O3.................................... 0.40%
Na2O..................................... 0.30%
MgO...................................... 0.20%
K2O...................................... 0.10%
Loss on ignition.......................... 9.8%
PCE.................................... Cone 36
 
GREENSTRIPE FIRECLAY
200 MESH
SiO2...................................... 54.10%
Al2O3..................................... 27.98%
FeO3...................................... 3.58%
Minor impurities.......................... 3.8%
Loss on ignition.......................... 11.12%
PCE....................................... Cone 31- 32
 
GROLLEG (ENGLISH KAOLIN)
SiO2....................................... 47.7%
Al2O3....................................... 37.2%
Na2O........................................ 2.87%
K2O........................................ 2.87%
CaO........................................ 2.87%
 
KENTUCKY BALL (OM4)
SiO2.................................... 51.92%
Al2O3..................................... 31.78%
TiO2...................................... 1.52%
Fe2O3..................................... 0.87%
CaO....................................... 0.21%
MgO....................................... 0.19%
K2O....................................... 0.89%
Na2O...................................... 0.38%
Loss on ignition.......................... 12.29%
PCE....................................... Cone 32
 
KENTUCKY SPECIAL BALL CLAY
SiO2...................................... 49.64%
Al2O3.................................... 29.33%
TiO2..................................... 1.48%
Fe2O3.................................... 0.95%
CaO...................................... 0.29%
MgO...................................... 0.25%
K2O...................................... 1.00%
Na2O..................................... 0.25%
Loss on ignition......................... 16.81%
PCE...................................... Cone 32
 
KINGSLEY KAOLIN
SiO2..................................... 45.1%
Al2O3..................................... 38.5%
FeO3...................................... 0.4%
TiO2...................................... 1.6%
Loss on ignition.......................... 13.9%
PCE....................................... Cone 34
 
LINCOLN 60 FIRECLAY
SiO2...................................... 52.0%
Al2O3..................................... 29.0%
FeO3...................................... 2.0%
K2O....................................... 1.9%
Loss on ignition.......................... 11.3%
PCE....................................... Cone 31
 
MISSOURI FIRECLAY (30-65 MESH)
SiO2...................................... 53.42%
Al2O3.................................... 30.41%
Fe2O3.................................... 1.61%
Loss on ignition......................... 11.22%
PCE...................................... Cone 31
 
P.V. #1 CLAY
SiO2..................................... 75.9%
Al2O3..................................... 14.8%
K2O....................................... 6.0%
CaO....................................... 0.8%
Fe2O3..................................... 0.1%
Loss on ignition.......................... 1.9%
PCE....................................... Cone 17
 
SNOWCAL (KAOLIN)
SiO2...................................... 65.41%
Al2O3.................................... 23.12%
Fe2O3.................................... 1.07%
CaO...................................... 0.31%
TiO2..................................... 0.20%
MgO...................................... 0.14%
Na2O..................................... 0.02%
K2O...................................... 0.44%
Loss on ignition......................... 10.20%
 
TENNESSEE #1 BALL CLAY
SiO2..................................... 49.08%
Al2O3.................................... 34.02%
TiO2..................................... 1.51%
Fe2O3.................................... 0.85%
CaO...................................... 0.31%
MgO...................................... Trace
K2O...................................... 0.88%
Na2...................................... 0.58%
Loss on ignition......................... 12.92%
PCE...................................... Cone 33


LOSS ON IGNITION (LOI):When a clay or mineral is strongly heated (1000°), the carbonates are burned off. When this occurs there is a change in the weight of the material. This change in weight, or loss on ignition, is expressed as a percentage of the dry weight.


PYROMETRIC CONE EQUIVALENT (PCE):A term which is used to determine how refractory a material is. PCE is determined by firing test materials with cones. The cone nearest the softening temperature of the material is the PCE.


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