M340GS Plainsman Clay, 20 kg
- Regular Price
- $31.85
- Sale Price
- $31.85
- Regular Price
- Unit Price
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⚠️Warning! Clay may freeze while in transit to, from and through cold climates. We will only ship clay at the customer’s risk during cold months. Placing an order for clay acknowledges and accepts this statement.
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Characteristics of this clay body
M340GS is based on Plainsman's most popular mid firing clay body M340 with 0,25% added 60-80 mesh granular manganese and an additional 4% fine grog. Not quite as smooth as M340 and sacrifices a little drying strength to get the added texture. Since there is only 4% grog, and only a portion of that is actually coarse enough to feel, there is no gain in drying properties (the most common reason for adding grog to clay bodies). Many customers buy it thinking that it dries better, however M340 by itself is an excellent drier (mainly because of its high dry strength). The presence of the grog is also an issue on functional ware because it introduces grit on rims and edges. It is also problematic in the forming process since it produces water splitting problems, most noticeable when pulling handles or throwing bellies and lips (the grog provides entrance points for the water). M340S is alternate where the speckle is wanted. Contains manganese so a kiln vent should be used during the firing.
Packaging
Plainsman moist clays are water-based and packaged in a 20 kg (44 lb) box. Each box contains two individually bagged 10 kilogram pugged blocks. Plainsman Clays are ready to use out of the box, no preparation is required.
Forming and Drying
Plainsman clays can be used in a variety of forming techniques. Hand building, slab building, and wheel throwing are just a few. Once shaped, slow and even drying is required. Once your piece is completely dry it's ready to fire in the kiln.
Firing
The tile displayed is the final fired result at cone 5. If glazing, bisque fire first and apply a glaze from the same temperature range and fire to the glaze manufacturer's suggested cone.
