White burning, low carbon for plastic bodies

Chemistry %

CaO	0.06
MgO	0.18
K2O	0.80
Na2O	0.09
TiO2	1.26
Al2O3	28.40
SiO2	58.80
Fe2O3	0.79

Volatiles %

LOI

9.30

A popular secondary clay used in both clay and glazes. This ball clay is the base for a number of very popular premixed plastic porcelain and whiteware bodies in USA. It is very plastic, fires to a light grey color with about 13% shrinkage at cone 10. Many potters claim that this is the whitest firing ball clay available in North America. In the powder form it looks much more like a light beige kaolin than a grey ball clay.

Crude Color: White
Dry M.O.R. (psi 50% clay/50% flint, cast bars): 305
Wet Sieve Residue, +200 mesh (%): 0.22
Water of Plasticity (%): 33
Linear Dry Shrinkage (%): 6.5
Solubles Sulfates (ppm): 115
Filtration (ml): 26
Specific Surface Area (sq meters per gram): 18.9
CEC/MBI (meq/100 ml): 9.5
pH: 6.0
PCE: 32

Firing Shrinkage (%)
Cone 04: 4.5
Cone 3: 6.6
Cone 11: 7.5

Absorption (%)
Cone 04: 15.8
Cone 3: 12.7
Cone 11: 5.0

Particle Size (% finer than):
50 microns: 99
20: 98
10: 94
5: 86
1: 62
0.5: 52

Median Particle Diameter (micron): 0.46

Out Bound Links

(Typecodes - Type) 1: BLC - Ball Clay

(MDT - Member) North America

The decision about what materials to include in th...

In Bound Links

(Materials - Alternative) Spinks HC#5 Clay - White burning, low carbon for plastic bodies

Spinks #5, Spinks No. 5, Spinks HC5

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Digitalfire Ceramic Materials Database

No. 5 Ball Clay