400

Potting and handbuilding clay.

Characteristics:
Cone: 06-04
Wet Color: Dark Grey
Fire Color
                Oxidation: Off-White
Texture: Smooth
Average Shrinkage
                Oxidation Cone 06: 7,3%
                                 Cone 04: 8,1%
Average Water Absorption
                Oxidation Cone 06: 15.7%
                                  Cone 04: 11,4%   
COE x 10-6 Cone 06: 7,89

* Protect from freezing.