Priced Per Pound Must purchase in 25 lb increments MC #20 (EM-107) A smooth plastic terra cotta colored clay for wheel and handbuilding -- this clay has the same properties as MC20, but a fine grog has been added for slightly less shrinkage and improved workability. Fires to a rich red color. Characateristics: Cone: 06 Wet Color: Red Firing Color: Oxidation: Terra Cotta - Reduction: N/A Texture: Medium Coarse Penetrometer Target: 7.5 Avg. Shrinkage ±2%: 8.0% Avg. Water Absorption ±1%: 11.5% COE x 10-6: 4.80
