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B-3 Brown WC-391 - 25 US lbs (11.36kg)



B-3 Brown WC-391

A pliable clay with smooth grog and color from manganese and iron.
Fires almost black when reduced and dark brown/black in oxidation.


Cone: 5
Wet Color: Red/Brown
Fire Color
Oxidation: Brown/Black
Reduction: Black
Texture: Slightly Coarse
Penetrometer Target: 6.75
Avg. Shrinkage 2±% 10%
Avg. Water Absorption 1±% 3%
COE x 10-6: 7.275