Potclays Original Red S/E

Pics from March 2020 firing – cone 10 down at front, softening at back. Slow cooled in reduction. Little ash in this area. Clay took on a purplish tint.

Manufacturer: Potclays Ref 159-1135

A plastic blend of various carefully graded red clays with fireclay producing outstanding tolerance and physical properties. Excellent for general purpose use. A good domestic earthenware body which throws and turns well, has a wide firing range and unusually good thermal shock resistance.

Applications: General purpose / throwing / hand building / general domestic / slipware.

Texture: 1 (1 smoothest, 10 most coarse)

Composition:

SiO2	TiO2	Al2O3	Fe2O3	MnO	CaO	MgO	K2O	Na2O	LOI
58.1	0.8	18.5	9.1	0.1	0.8	0.2	0.9	1.2	11.3

33% fireclay, 67% other clay.
0% grog.
Shrinkage 11%@1100
Thermal expansion 0.33%
Vitrification 1130 – 1170C
Firing 1050 - 1170C