Plainsman M370 Cone 4-7 White Ceramic Clay Body, 4 lb
$7.50USD
In Stock
- Brand: Plainsman Clays
- Model #: PLAINSMAN-M370-4
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Plainsman M370 Cone 4-7 White Ceramic Clay Body, 4 lb
Middle temperature, smooth, very plastic, white-firing, semi-vitreous, refined material body for functional stoneware. M370 is Plainsman's most popular white burning clay.
M370 is semi-vitreous (it is somewhat porous at cone 5-7). Compared to similar competitor bodies, M370 is whiter (because it uses more kaolines and less ball clays). It is white enough that the powder is a good base for slips and engobes.
M370 is semi-vitreous at cone 6 (having about 1% porosity). Because Plainsman targets this degree of density, it fires whiter and is tolerant of over-firing (having less tendency to bloat, stick to shelves, and glue lids to lips of ware). However, on second fix-up firings, it can bloat if fired above cone 6.
Proudly Manufacturered in Canada by Plainsman Clays.
TECHNICAL SPECIFICATIONS:
Firing range: Cone 4–7
Drying Shrinkage: 5.5–6.5%
Water Content: 21.7–22.7%
Drying Factor: C120
Fired Shrinkage:
Cone 4: 5.5–6.5%
Cone 5: 6.0–7.0%
Cone 6: 6.5–7.5%
Cone 7: 6.5–7.5%
Fired Absorption:
Cone 4: 3.0–4.0%
Cone 5: 1.5–2.5%
Cone 6: 0.5–1.5%
Cone 7: 0.2–0.8%
Storage: Protect ceramic clay bodies from direct sunlight, avoiding excessive temperature changes and protect from frost.
Use: It is recommended to test clay body prior to large scale use in order to verify suitability in both the ceramic process (shaping, drying, firing and decoration) and the final application that is expected to be obtained.