M340 Mid Fire Clay
M340 is one of our most popular general-purpose clay bodies – plastic, medium-fired and buff burning, and it throws and hand-builds equally well. Best fired to cone 6.
Plainsman Clays | WHEAT
$31.35 / 20 kg (44 lb) Box
$0
Suggested retail price. In-store prices and availability may vary by location.
Mid fired, Warm buff burning, Light speck, Smooth, High plasticity, Throwing clay body
Wheat is a smooth, highly plastic general purpose body for cone 6, firing to a warm buff. Iron concretions in the clay give it a light natural speck.
It is our lower-cost alternative to the M340 bodies. At cone 6 the maturity and colour are close to M340.
It is highly bentonitic, which is what gives it the plasticity – and means it needs less water than most throwing clays.
LOI 7.1%
Cone 6 medium temperature clay body · warm buff burning · general purpose
Smooth, with high plasticity
Throwing · functional and decorative stoneware
Cone 5 · 6 · 7 – like all of our medium temperature clay bodies, Wheat is designed to fire at cone 6 (1222 °C / 2232 °F)
Warm buff with a light iron speck · consistent from cone 5 through cone 7
Dry 7.1–7.6% · fired 6.3–6.6% at cone 5, 6.5–6.8% at cone 6, 6.7–7.0% at cone 7
Cone 5 1.3–1.8% · cone 6 1.0–1.4% · cone 7 0.5–1.0%
Every figure is a measured range from the Plainsman lab, not a single nominal number. Cone equivalents are Orton self-supporting cones at 108 °F/hr.
M340 is one of our most popular general-purpose clay bodies – plastic, medium-fired and buff burning, and it throws and hand-builds equally well. Best fired to cone 6.
M340S is a light beige, cone 6 clay body with dark speckles running all the way through it. It is the one to reach for if you want a spotted, variegated surface under your glazes.
M340GS is M340S with added grog. It has a slightly coarser tooth within a plastic matrix, and is good for work that requires some structural strength. It is made almost exclusively from our native clays – take care not to over-saturate the surface with water.