We are limiting the purchase of AMACO and Mayco glaze to 2 pints of each color per person.


#550 Porcelain

This is a 50 pound box of clay.  The website will only process one 50 pound box of clay to ship in a USPS Large Flat Rate Box per order at this time.

Made primarily of English Grolleg. Contains plasticizers to make this the finest translucent porcelain available for throwing, thin slab work and handbuilding. The "standard" porcelain for the US Northeastern potters. 

Reduction ( First Image), Oxidation  ( Second Image).


Cone: 10 
Wet Color: White 
Firing Color:  Oxidation: White - Reduction: Gray/White 
Texture: Smooth 
Consistency: Slightly Firm 
Avg. Shrinkage ±2%: 14.75% 
Avg. Water Absorption ±1%: 0.3% 
COE x 10-6: 5.46 

Type: Clay

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