No. 1 Glaze

No. 1 Glaze Clay is a very high kaolin bearing selection with extremely low levels of carbon content. it provides excellent suspension to all types of glazes especially glazes containing a high percentage of frit which has soluble alkali. No. Glaze provides viscosity control range and excellent rheology for all glaze application methods and especially bell or cone applications processes.

Typical Data Sheet
Shipping Point: Hickory, Kentucky
Crude Color White 
Dry Sieve Residue, +80 mesh (%) 0.40 
Wet Sieve Residue, +200 mesh (%) 0.39 
Wet Sieve Residue, +325 mesh (%) 0.34 
Nature of Residue High Purity Quartz 
Water of Plasticity (%) 31 
Linear Drying Shrinkage (%) 5.8 
Soluble Sulfates (ppm) 160 
Specific Surface Area (m2/g) 18.0 
CEC/MBI(meq/100 ml) 7.1 
pH 5.9 
Particle Size (% less than)
5 Micron
1 Micron
.5 Micron 

Median Particle Diameter (Micron) 0.37 
Coefficient of Linear Expansion, x 10 -6 (50-500 degrees C)* 5.90 
Percent Linear Expansion, (500 degrees C) 0.277 

*Prefired 1200 degrees C 

Chemical Analysis & Mineralogical Analysis
(Feldspar Rational Analysis Method)

Silicon Dioxide 56.32 
Aluminum Oxide 29.37 
Iron Oxide 0.87 
Titanium Dioxide 2.44
Calcium Oxide 0.10 
Magnesium Oxide 0.28 
Sodium Oxide 0.10 
Potassium Oxide 028 
Loss on Ignition 9.91 
Carbon(%) 0.08 
Sulfur (ppm) 73 
Kaolinite 70.8 
Quartz 22.4 
Feldspar 4.5 
Organic 0.0 
Misc. Trace Minerals 2.3

NOTICE: All data given and statements and recommendations made herein are based upon our research and are believed to be accurate typical data. However, no guarantee of their accuracy is made or implied. Our products are sold on the condition that the user will evaluate them himself, as well as our formulas and recommendations, to determine their suitability for his own purposes before adoption on a commercial scale. Also, statements as to the use of our products are not to be construed for their use in the infringement of any patent.

Warning: This clay product contains quartz which may cause delayed respiratory disease (silicosis) if inhaled over a prolonged period of time. Avoid breathing dust. Use NIOSH/MSHA approved respirators where TLV for crystalline quartz is exceeded. IARC Monograph Volume 68, 1997 concludes that the respirable fraction of crystalline quartz, causes cancer in humans. Refer to MSDS for complete details.