H-570

A high temperature, plastic, semi-vitreous, ball clay:kaolin body for oxidation and reduction fired functional stoneware. Less white and less vitreous than other Plainsman's porcelains. But it is better drying, less prone to warping in the kiln, easier to fit glazes to and potentially more consistent (because it utilizes three clays to minimize effects of individual changes). The combination of working and firing properties make it a very good choice for functional ware for the majority of people.

Characteristics:
Cone: 8-10
Wet Color: White
Fire Color
                Oxidation: Grey-White
                Reduction: Grey
Texture: Smooth
Average Shrinkage
                Oxidation Cone 8:  6,0 - 7,0%
                                  Cone 10: 6,5 - 7,5%
                Reduction Cone 10: 6,5 - 7,5%
Average Water Absorption
                Oxidation Cone 8:  2,0 - 3,0%
                                  Cone 10: 1,0 - 2,0%
                Reduction Cone 10: 0,3 - 0,8%
COE x 10-6: N/A

* Protect from freezing.