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Plainsman Fireclay

Alternate Names: PFC

Oxide Analysis Formula
K2O 2.10% 0.08
MgO 0.20% 0.02
Na2O 1.00% 0.06
TiO2 0.70% 0.03
Al2O3 27.00% 1.00
CaO 0.20% 0.01
SiO2 58.10% 3.65
Fe2O3 2.00% 0.05
LOI8.70%
Oxide Weight 344.91
Formula Weight 377.78

Notes

A buff firing, medium plasticity, slightly toothed fireclay. Ideally suited as a refractory agent to reduce body maturity, yet not adversely affect its working and drying properties, or overly darken its fired color.

This material is good substitute for the popular but discontinued AP Green Missouri Fireclay. It fires to a similar color and is a bit more refractory.

Fireclays are often inexpensive and thus coarsely (or even erratically ground). They are implicated in lime-popping. Fireclay should be ground to at least 30 mesh to eliminate this problem.

Related Information

Links

Articles Duplicating AP Green Fireclay
Few people actually understood what AP Green fireclay really was (it is no longer available). By carefully ascertaining its physical properties we were able to formulate a substitute material mix.
Typecodes Fireclay
Fireclays are non-kaolin non-ball clay materials similar to stoneware clays but lacking fluxing oxides. Many fireclays have a PCE of 28 or more.
Typecodes Fireclay
Fireclays are non-kaolin non-ball clay materials similar to stoneware clays but lacking fluxing oxides. Many fireclays have a PCE of 28 or more.
Typecodes Clay Other
Clays that are not kaolins, ball clays or bentonites. For example, stoneware clays are mixtures of all of the above plus quartz, feldspar, mica and other minerals. There are also many clays that have high plasticity like bentonite but are much different mineralogically.
Suppliers Plainsman Clays
Materials Fireclay
Materials APG Missouri Fireclay
Materials Imco 400 Fireclay
Materials Hawthorne Bond
Materials Cedar Heights Fireclay
Materials Plasticfire
URLs https://plainsmanclays.com/data/index.php?product=12904
PFC Data Sheet

By Tony Hansen


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