Sandstone Buff is a high fire earthenware body which fires a warm toast color above cone 6. It is a dark grey brown when reduction fired. It can be fired as low as cone 06 to produce a soft warm colored earthenware which is suitable for sculpture or elementary school projects. This clay does work well for Raku or pit firing. When fired to cone 6 or above it is an excellent ovenware. It has good thermal shock properties.
When fired to recommended temperatures all of our clays will have an approximate 10% to 12% shrinkage. This will depend on your firing and working techniques.
Cone 4 - 10 / Pumpkin Pie @ Cone 6 - 8 oxidation