SIO-2® UPSALA - Blue Porcelain, 22 lb (2 boxes)

SIO-2® UPSALA - Blue Porcelain

22 lb (10 kg)

Upsala is a unique blue porcelain noted for its beautiful cobalt blue color. It has high plasticity, which makes it ideal for wheel-throwing and modeling.

Its formula is very stable and provides a secure firing range between Cone 6-7 (oxidizing atmosphere). It is suitable for tableware (food-safe), according to ISO 6486:1999.

Upsala is available in extruded body (moist form), and presented in a practical 11 lb. cylindrical format with double packaging. Two of the 11 lb. packages are included for a total of 22 lbs.

This product is being offered with $15 Shipping via USPS Priority Flat Rate Box for deliveries within the USA.

This product is eligible for a bulk discount! Buy 4 or more of this product to get 10% off the total price!

DETAILED INFORMATION:

Firing range: Cone 6-7 (2269ºF-2295ºF)
Biscuit temperature: Cone 06 (1855ºF)
Water content: 21%
Plasticity (IP Atterberg): 11
Carbonate content (CaCO3): 0%
Drying shrinkage: 5.2%
Firing shrinkage at Cone 6: 10.4%
Porosity (water absorption at Cone 6): 0.0%
Dry bending strength: 3.3 N/mm2
Fired bending strength at Cone 6: 47.2 N/mm2
Thermal coefficient (25-500ºC): 58.3x10^-7ºC^-1

FAQ for Upsala clay, with answers provided by SIO-2®

Can you bisque fire this at cone 04?
The recommended bisque firing temperature according to our technical recommendations is 1000ºC which is equivalent to cone 06 (1855ºF). Nevertheless, a bisque firing up to cone 04 is still OK, especially for our porcelains and stoneware. It’s important to know that with higher bisque firing temperatures, the object becomes harder and less porous, but it might be more difficult to apply the glazes as the liquid cannot easily enter the pores.

Click here to download our Fact Sheet for UPSALA clay!

Are you new to pottery and want to learn more about some common pottery terms? Check out the website for the Donn Zver School of Pottery to find a list of terms and explanations for what they all mean.

School of Pottery

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