435

425 with 10% medium-coarse grog for handbuilding larger pieces. For very large forms use 620.

Characteristics:
Cone: 06-2
Wet Color: Red-Brown 
Fire Color
                Oxidation: Terra-Cotta
Texture: Medium Coarse
Average Shrinkage
                Oxidation Cone 06: 6,4%
                                 Cone 04: 8,2%
Average Water Absorption
                Oxidation Cone 06: 13,4%
                                 Cone 04: 7,3%
COE x 10-6 Cone 06: 6,91

* Protect from freezing.