SGP #1 is a coarse-grained, fast casting Ball Clay used in all types of casting applications, but primarily used in artware.
Ball Clays are a secondary, transported (sedimentary) clay which are very plastic and fire to a pale color... They have a high shrinkage rate and are difficult to handle on their own due to a very fine particle size.... - p. 14, Illustrated Dictionary of Practical Pottery, 3rdEd. by Robert Fournier
Ball Clays are a secondary, transported (sedimentary) clay which are very plastic and fire to a pale color... They have a high shrinkage rate and are difficult to handle on their own due to a very fine particle size.... - p. 14, Illustrated Dictionary of Practical Pottery, 3rdEd. by Robert Fournier
50# bag; brown bag, TN #1 SGP printed on side
