266 Umbria | Cone 4-5

C/4-5

Gives a reduction-like dark brown color in an electric kiln. Smooth and plastic. Good for all techniques. Contains manganese. We recommend a cone 5 firing for this clay.

Cone 4 Average Shrinkage 11.5% Absorption 2.4%

Cone 5 Average Shrinkage 12.5% Absorption 1.0%

All clays come in 25 lb. bags - 2 bags per 50 lb. box.

Need firing advice or tips? No worries!
Reach out to Sales@americanceramic.com — ACS’s team of ceramic experts will be happy to help you. :)