Activ-Low Fire Clay™ Natural Kiln Earthenware, 20 lb (9.07 kg) *SHIPPING INCLUDED via USPS*

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Activ-Low Fire Clay 

Activ-Low Fire Clay (formerly Blackjack Low Fire Clay) is a blend of several natural clays and minerals that produces a smooth white talc body with good plasticity. This earthenware clay is a light gray color when wet yet fires to white. It is great for hand modeling, hand building, slab rolling and can be thrown on a potter’s wheel. This clay is excellent for all skill levels from beginners to professionals, and is non-toxic certified.

This earthenware clay fires in a kiln to maturity at cone 06 and bisque fires at cone 04.

This product is being offered with SHIPPING INCLUDED with USPS Priority Flat Rate Box for deliveries within the USA.


Firing range: Cone 06-04 (1855º-1971ºF)
Water content:
Plasticity (IP Atterberg):
Carbonate content (CaCO3):
Drying shrinkage:
Firing shrinkage at Cone 6: 10%
Porosity (water absorption) at Cone 6: 14%
Dry bending strength:
Fired bending strength at Cone 6:
Thermal coefficient (a25-500ºC):

For more detailed product instructions and tips, please view our Activ-Low Fire Clay Instructions.

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