Category: Glaze > Shino > Carbon Trap
Created 2016-03-22 21:22:24 by Steve Davis
Categories: Glaze > Shino > Carbon Trap
Firing Temperature: Δ10
Atmospheres: Reduction

From Steve Davis

Shinos 1:

There are 72 shinos shown on 4 web pages. They are organized from left to right with 3 tiles of the same glaze shown on 3 different clay bodies. They are Aardvark Clay's Nara Porcelain, Long Beach, and Black Mountain. Every shino was glazed with a doulble dip, waxed with a simple "S" pattern, and left to dry for 2 weeks to grow sulfates on the surface. The "S" pattern has no sulfate build up. A medium reduction was started at cone 012 through cone 2. From there the kiln was fired in neutral to cone 10.

Material Amount Batch Subtotal
Custer Feldspar 30
Spodumene (Theoretical) 25
Kentucky OM #4 Ball Clay 25
Nepheline Syenite (Theoretical) 8
Soda Ash 7
Total Base:100
Yellow iron oxide 0.5
Total: 100.5

Percentage Analysis

Ingredient Amount SiO2 Al2O3 MgO CaO Li2O K2O Na2O KNaO P2O5 Fe2O3 TiO2 LOI
Custer Feldspar3020.555.10.0930.
Spodumene (Theoretical)2516.156.852
Kentucky OM #4 Ball Clay2513.86.970.
Nepheline Syenite (Theoretical)84.861.860.010.060.370.781.150.010.06
Soda Ash73.53.53.5
Yellow iron oxide0.50.440.06
100% no LOI 62.224.450.

Unity Molecular Formula (UMF)



0.43 Na2O
0.2 K2O
0.34 Li2O
0.02 CaO
0.01 MgO


1.13 Al2O3


4.86 SiO2
0.02 TiO2


0.03 Fe2O3





0.96 : 0.04

SiO2:Al2O3 Chart

Closest 20 neighbors in Glaze > Shino > Carbon Trap.

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Stull Chart
SiO2:Al2O3 Ratio
SiO2:Al2O3 Ratio 4.32

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09/2016 Note: This is a new feature. If a recipe material is not listed, that material's data has not yet been added. Some materials only have GHS ratings, while others only have HMIS ratings. Warnings differ between systems and countries. Glazy does not take any responsibility for accuracy of linked SDS information. Contact your ceramics supplier for safety information for your specific materials.
Globally Harmonized System (GHS) Hazardous Materials Identification System (HMIS) SDS Link
Material Pictograms Signal Word Hazard Statements Health Flammability Hazard Protection
Custer Feldspar HarmfulHealth Hazard WARNING May cause damage to lungs through prolonged or repeated inhalation.
Suspected of causing cancer through
prolonged or repeated inhalation.
May cause allergy or asthma symptoms or breathing difficulties if inhaled.
May cause skin or eye irritation.
Spodumene (Theoretical) Health Hazard DANGER May cause cancer by inhalation.
Causes damage to organs through prolonged or repeated exposure.
Kentucky OM #4 Ball Clay Health Hazard WARNING May cause damage to lung through prolonged or repeated inhalation 2 0 0 E
Soda Ash Harmful WARNING Causes skin irritation.
Causes serious eye irritation.
2 0 0 B
EPK HarmfulHealth Hazard DANGER EPK Kaolin is a naturally occurring mineral, which may contain amounts of crystalline silica
typically 0.1-1.0%, may cause damage to respiratory system through prolonged or repeated
1 0 0 E
Yellow iron oxide