Category: Glaze > Shino > Carbon Trap
Created 2017-10-16 23:42:06 by Sid Henderson
Categories: Glaze > Shino > Carbon Trap
Firing Temperature: Δ10-11
Atmospheres: Reduction
Surface Type: Glossy - Semi
Transparency: Opaque

This recipe can create a gorgeous golden shine where the correct thickness, and a deep red/saffron where thin.

Best when fired under heavy reduction.

Feel free to play with the soda ash concentration. More soda may result in more carbon black, less soda may result in a dryer, saffron-red glaze instead.

Feel free to try out different kaolins. Grolleg, for example, may flash a brighter orange, and a dirtier kaolin may result in better metallic colors.

I have not tested this in a wood firing, but I would recommend it only for an inside liner, as its not a hi-alumina type. Alternatively, you could try leaving out all the soda ash and seeing what that would do.

Material Amount Batch Subtotal
Nepheline Syenite (Theoretical) 40
Spodumene (Theoretical) 13
Kentucky OM #4 Ball Clay 13
Soda Ash 12
Kona F-4 feldspar 10
EPK 10
Redart 7
Total: 105

Percentage Analysis

Ingredient Amount SiO2 Al2O3 MgO CaO Li2O K2O Na2O KNaO P2O5 Fe2O3 TiO2 LOI
Nepheline Syenite (Theoretical)4024.289.320.040.281.843.925.760.040.28
Spodumene (Theoretical)138.43.561.04
Kentucky OM #4 Ball Clay137.183.630.
Soda Ash12666
Kona F-4 feldspar106.671.960.010.170.480.691.170.02
100% no LOI 58.4224.450.230.551.092.9111.2214.130.040.790.28

Unity Molecular Formula (UMF)



0.69 Na2O
0.12 K2O
0.14 Li2O
0.04 CaO
0.02 MgO


0.91 Al2O3


3.68 SiO2
0.01 TiO2


0.02 Fe2O3





0.94 : 0.06

SiO2:Al2O3 Chart

Closest 21 neighbors in Glaze > Shino > Carbon Trap.

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Stull Chart
SiO2:Al2O3 Ratio
SiO2:Al2O3 Ratio 4.05

Similar Base Recipes

No recipes with similar base ingredients and amounts were found.

Similar RO/R2O Unity Formulas

Recipe Name ΔTemp Al2O3 B2O3 SiO2 ZrO2 SnO2 TiO2 KNaO K2O Na2O CaO MgO ZnO BaO PbO Li2O SrO
Golden Shino 10-11 0.91 3.68 0.01 0.81 0.12 0.69 0.04 0.02 0.14
Shino Carbon Trapping Orange 10-11 0.88 3.69 0.01 0.86 0.09 0.77 0.02 0.01 0.1

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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
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
Redart HarmfulHealth Hazard DANGER Causes skin irritation
Causes eye irritation
May cause cancer (Inhalation)