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Bandy Black

For casting slips

Oxide Weight375.19
Formula Weight416.19
If this formula is not unified correctly please contact us.

This product was discontinued by H. C. Spinks Clay Company in 2003, it is no longer available. It was used as a coarse ball clay, therefore, contributing to fast slip casting, as well as strength, therefore reducing the tendency to crack after casting or break during handling (usually coarse ball clays are limited in their contribution to strength). It was discontinued because more the industry was interested in blended products that included a larger range of particle sizes. That means a user required only 2 or 3 ball clays for their formulas (instead of 4 or 5) thereby saving space and inventory costs.

Relative Viscosity (1.2 Sp. Gr.):* 1.26
Casting Rate: (gms per 15 min/426 cm2):* 258
Water of Plasticity:* 23.2
% Dry Shrinkage:* 3.2
Dry M.O.R., psi:* 328

Cone 04 8 11
Fired Shrinkage:* 0.0% 3.6% 6.2%
Absorption:* 21.9% 14.3% 6.9%
M.O.R. psi:* 303 3690 5320

Thermal Expansion, Cone 8: .375% at 700C
P.C.E.: 31
pH: 4.1
Oil Absorption: 32
Bulk Density, lbs per cubic foot: 37-45
Particle Size, Microns: 20 10 5 2 1 0.5 0.2
92% 84% 69% 44% 25% 11% 3%

*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="Bandy Black" descrip="For casting slips" searchkey="" loi="0.00" casnumber="70694-09-6"> <oxides> <oxide symbol="CaO" name="Calcium Oxide, Calcia" status="" percent="0.090" tolerance=""/> <oxide symbol="MgO" name="Magnesium Oxide, Magnesia" status="" percent="0.120" tolerance=""/> <oxide symbol="K2O" name="Potassium Oxide" status="" percent="1.690" tolerance=""/> <oxide symbol="Na2O" name="Sodium Oxide, Soda" status="" percent="0.360" tolerance=""/> <oxide symbol="P2O5" name="Phosphorus Pentoxide" status="" percent="0.070" tolerance=""/> <oxide symbol="TiO2" name="Titanium Dioxide, Titania" status="" percent="1.290" tolerance=""/> <oxide symbol="Al2O3" name="Aluminum Oxide, Alumina" status="" percent="24.500" tolerance=""/> <oxide symbol="SiO2" name="Silicon Dioxide, Silica" status="" percent="61.000" tolerance=""/> <oxide symbol="Fe2O3" name="Iron Oxide, Ferric Oxide" status="" percent="0.990" tolerance=""/> <oxide symbol="MnO" name="Manganous Oxide" status="" percent="0.010" tolerance=""/> </oxides> <volatiles> <volatile symbol="LOI" name="Loss on Ignition" percent="9.740" tolerance=""/> <volatile symbol="SO3" name="Sulfur Trioxide" percent="0.110" tolerance=""/> </volatiles> </material>

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