•The secret to cool bodies and glazes is a lot of testing.
•The secret to know what to test is material and chemistry knowledge.
•The secret to learning from testing is documentation.
•The place to test, do the chemistry and document is an account at https://insight-live.com
•The place to get the knowledge is https://digitalfire.com

Sign-up at https://insight-live.com today.

Kentucky Stone

Kentucky Ball Clay

Alternate Names: Kentky Stn, Kentucky Stone Clay

Oxide Weight480.42
Formula Weight517.14
If this formula is not unified correctly please contact us.
PCE - Pyrometric Cone Equivalent 24

A coarse-grained, siliceous, illitic Ball Clay known for its high strength and plasticity. Applications include artware and ceramic tile. The high free silica content means that bodies with a high percentage of this material could cause certain glazes to shiver.

Physical Properties
Water of Plasticity*: 26.6%
% Dry Shrinkage*: 5.4
Dry M.O.R. (50:50 ball clay:silica) psi:* 776
pH: 3.9
M.B.I. (meq/100g): 10.1
Specific Surface Area (sq metre/g): 20
Soluble sulfur SO4: Medium

P.C.E.: 24

Particle Size, Microns: 20 10 5 2 1 0.5 0.2
(% finer than) 91% 81% 69% 55% 59% 37% 26%

Fired Properties
Cone 5 10
Total Shrinkage: 8.0% 10.1%
Absorption: 12.1% 5.1%

*This info is from a data sheet data Jan 2013

Out Bound Links

By Tony Hansen

XML for Import into INSIGHT

<?xml version="1.0" encoding="UTF-8"?> <material name="Kentucky Stone" descrip="Kentucky Ball Clay" searchkey="Kentky Stn, Kentucky Stone Clay" loi="0.00" casnumber="70694-09-6"> <oxides> <oxide symbol="CaO" name="Calcium Oxide, Calcia" status="" percent="0.200" tolerance=""/> <oxide symbol="MgO" name="Magnesium Oxide, Magnesia" status="" percent="0.500" tolerance=""/> <oxide symbol="K2O" name="Potassium Oxide" status="" percent="1.200" tolerance=""/> <oxide symbol="Na2O" name="Sodium Oxide, Soda" status="" percent="0.200" tolerance=""/> <oxide symbol="TiO2" name="Titanium Dioxide, Titania" status="" percent="1.300" tolerance=""/> <oxide symbol="Al2O3" name="Aluminum Oxide, Alumina" status="" percent="20.000" tolerance=""/> <oxide symbol="SiO2" name="Silicon Dioxide, Silica" status="" percent="69.000" tolerance=""/> <oxide symbol="Fe2O3" name="Iron Oxide, Ferric Oxide" status="" percent="1.800" tolerance=""/> </oxides> <volatiles> <volatile symbol="LOI" name="Loss on Ignition" percent="7.100" tolerance=""/> </volatiles> </material>

Feedback, Suggestions

Your email address


Your Name


Copyright 2003, 2008, 2015 https://digitalfire.com, All Rights Reserved