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Spinks HC#5 Clay

White burning, low carbon for plastic bodies

Alternate Names: Spinks #5, Spinks No. 5, Spinks HC5

OxideAnalysisFormula
CaO0.27%0.018
MgO0.21%0.019
K2O0.31%0.012
Na2O0.10%0.006
P2O50.14%0.004
TiO21.59%0.073
Al2O327.65%1.000
SiO256.25%3.453
Fe2O31.13%0.026
MnO0.02%0.001
LOI12.40
SO30.03
Oxide Weight323.41
Formula Weight369.32
If this formula is not unified correctly please contact us.

This ball clay is very white firing and is quite similar to the popular Old Hickory #5 material, infact it was developed to emulate it. It is thus also a good choice to suspend glazes. Amounts of only 15% are needed in a recipe having no other clay materials, however beware not to use too much or the glaze will gel.

Relative Viscosity (1.2 Sp. Gr.):* 1.29
Casting Rate: (gms per 15 min/426 cm2):* 242
Water of Plasticity:* 21.2
% Dry Shrinkage:* 5.14
Dry M.O.R., psi:* 230

Cone 04 8 11
----
Fired Shrinkage:* 0.1% 1.5% 2.1%
Absorption:* 16.9% 14.0% 12.6%
M.O.R. psi:* 1758 2830 5863

Thermal Expansion, Cone 8: .335% at 700C
P.C.E.: 32+
pH: 4.2
Oil Absorption: 32
Bulk Density, lbs per cubic foot: 35-40
Particle Size, Microns: 20 10 5 2 1 0.5 0.2
93% 82% 65% 44% 30% 18% 6%

*Specimens: De-aired, extruded, 50% ball clay, 50% flint


Out Bound Links


By Tony Hansen

XML for Import into INSIGHT

<?xml version="1.0" encoding="UTF-8"?> <material name="Spinks HC#5 Clay" descrip="White burning, low carbon for plastic bodies" searchkey="Spinks #5, Spinks No. 5, Spinks HC5" loi="0.00" casnumber="70694-09-6"> <oxides> <oxide symbol="CaO" name="Calcium Oxide, Calcia" status="" percent="0.270" tolerance=""/> <oxide symbol="MgO" name="Magnesium Oxide, Magnesia" status="" percent="0.210" tolerance=""/> <oxide symbol="K2O" name="Potassium Oxide" status="" percent="0.310" tolerance=""/> <oxide symbol="Na2O" name="Sodium Oxide, Soda" status="" percent="0.100" tolerance=""/> <oxide symbol="P2O5" name="Phosphorus Pentoxide" status="" percent="0.140" tolerance=""/> <oxide symbol="TiO2" name="Titanium Dioxide, Titania" status="" percent="1.590" tolerance=""/> <oxide symbol="Al2O3" name="Aluminum Oxide, Alumina" status="" percent="27.650" tolerance=""/> <oxide symbol="SiO2" name="Silicon Dioxide, Silica" status="" percent="56.250" tolerance=""/> <oxide symbol="Fe2O3" name="Iron Oxide, Ferric Oxide" status="" percent="1.130" tolerance=""/> <oxide symbol="MnO" name="Manganous Oxide" status="" percent="0.020" tolerance=""/> </oxides> <volatiles> <volatile symbol="LOI" name="Loss on Ignition" percent="12.400" tolerance=""/> <volatile symbol="SO3" name="Sulfur Trioxide" percent="0.030" tolerance=""/> </volatiles> </material>


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