Plainsman Native Clay

Chemistry %

BaO	0.30
CaO	0.50
MgO	0.60
K2O	1.10
Na2O	0.10
P2O5	0.20
TiO2	0.90
Al2O3	15.40
SiO2	66.30
Fe2O3	6.90
MnO	0.10

Volatiles %

LOI

7.60

SADR - Sieve Analysis Dry

+48 mesh: 0.5-1.0% 48-65: 2.0-4.0 65-100: 3.0-5.0 100-150: 4.0-6.0 150-200: 5.0-7.0 200-325:

MLPT - Melting Point (MP)

PCE 17

WABS - Water absorption

Cone 4: 9.0-11.0% Cone 6: 7.5-9.5 Cone 8: 6.0-8.0 Cone 10: 5.0-7.0 Cone 10R: 2.0-3.0

FSHR - Firing Shrinkage

Cone 4: 3.0-4.0% Cone 6: 3.5-4.5 Cone 8: 4.0-5.0 Cone 10: 4.5-5.5 Cone 10R: 3.0-4.0

DSHR - Drying Shrinkage

6.0-7.0

A natural, high iron, high temperature stoneware clay blend of a refractory low plastic red clay, a medium temperature medium plastic red clay and a bentonitic ball clay. Firered has medium plasticity and is thus a plasticity nuetral additive to clay bodies. It is slightly sandy and by itself is a deep, solid red at cone 10R with speckle. It is stable to cone 12+. This material is a better choice for impart red color to medium and high temperature bodies than typical low fire red clays (the latter tend to flux to brown rather than red colors even in bodies with low feldspar).

This material is a possible alternative to Newman red fireclay with caveats.
-This material is more plastic (thus ball clay or bentonite in the recipe can be reduced to compensate)
-FireRed is a little more vitreous (thus feldspar can be reduced).
-FireRed has a much coarser particle size distribution so homogeneous red burning bodies will look less so and they will have a much more toothy feel.
-FireRed has less staining power, you may need to augment it with iron oxide.

Fired Temperature, Cone 6 7 8 9 10 11 10R
--------------------------------------------
Fired Shrinkage: 3.2% 3.4% 3.6% 3.6% 3.7% n/a n/a
Absorption: 8.2% 8.0% 7.8% 7.5% 7.1% n/a n/a
Fired Strength:
(lbs/ square inch) 3800 4200 4300 4300 4300

Sieve Analysis Wet Washed
(Root of 2 series) +35 +48 +65 +100 +150# +200 +325
--------------------------------------------
0.1% 0.5% 2.5% 5.0% 6.0% 11.0% 11.0%

Texture: Sl. tooth
Plastic Index (1-10): 5
Green Strength (lbs/sqaure inch): 800
Dry shrinkage: 5.5
Dried density: 2.06
PCE: 16.5

Out Bound Links

(URLs) Firered Data Sheet
http://plainsmanclays.com/data/FIRERED.HTM

(Materials - Ingredient of) Saint Rose Red - High Temperature Red Stoneware, St. Rose, St Rose

(Materials - Alternative) Newman Red Clay - High temperature red burning low plastic stoneware

Newman Fireclay

(Materials - Ingredient of) M2 Red Stoneware - Medium temperature deep red burning stoneware

Plainsman M2

(Materials - Ingredient of) A1 Ball Clay - PR#3 A1, Pyritic bentonitic ball clay

(Typecodes) 1: CLO - Clay Other

In Bound Links

(Materials - Substitute) Plainsman Red Fireclay

(Typecodes - Unspecified) 1: FRC - Fireclay

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Firered