Category: Glaze > Shino
Created 2016-11-18 03:20:48 by Phillip Schmidt
Categories: Glaze > Shino
Firing Temperature: Δ10
Atmospheres: Reduction
Surface Type: Satin
Transparency: Semi-opaque

From Phillip Schmidt
http://phillipschmidtpottery.com/my-favorite-glaze-recipes/

I formulated this glaze by studying quite a few American potters’ shino recipes. I began by testing many recipes and noting both likes and dislikes of each glaze test. Noticing patterns, it became obvious to me that I really enjoyed a shino that included the ingredient Spodumene. BINGO! I also enjoy simple recipes with few ingredients the most, so the recipe came quite easily after the testing. Enjoy!

Notes:
This is a cone 10 glaze that likes a hot firing.
What I love about it: it fires from creamy white to dark orange, thick to thin; it pinholes beautifully where you trim; it has a wonderful feel; it doesn’t crawl.
What I am unsatisfied with: It crazes a bit too much; it is too shiny; it doesn’t crawl :).

(Recipe calls for 0-2% Soda Ash)

Material Amount Batch Subtotal
Nepheline Syenite (Theoretical) 50
Ball Clay (Theoretical) 25
Spodumene (Theoretical) 25
Total Base:100
Soda Ash 2
Total: 102

Percentage Analysis

Ingredient Amount SiO2 Al2O3 MgO CaO Li2O K2O Na2O KNaO Fe2O3 TiO2 LOI
Nepheline Syenite (Theoretical)5030.3511.650.050.352.34.97.20.050.35
Ball Clay (Theoretical)2514.776.260.070.080.230.10.330.250.253
Spodumene (Theoretical)2516.156.852
Soda Ash2111
Total10261.2624.760.120.4322.5368.520.30.254.35
100% no LOI 62.7425.350.130.442.052.596.148.730.310.26

Unity Molecular Formula (UMF)

FLUXES

RO/R2O

0.48 Na2O
0.13 K2O
0.33 Li2O
0.04 CaO
0.02 MgO
STABILIZERS

R2O3

1.21 Al2O3
GLASS-FORMERS

RO2

5.07 SiO2
0.02 TiO2
OTHER

 

0.01 Fe2O3
SILICA:ALUMINA

SiO2:Al2O3

4.20

FLUX RATIO

R2O:RO

0.95 : 0.05

SiO2:Al2O3 Chart

Closest 100 neighbors in Glaze > Shino.

Click and drag to zoom
Stull Chart
SiO2:Al2O3 Ratio
SiO2:Al2O3 Ratio 4.2

Similar Base Recipes

No recipes with similar base ingredients and amounts were found.

Similar RO/R2O Unity Formulas

R2O3 - STABILIZERS RO2 - GLASS FORMERS RO/R2O - FLUXES
Recipe Name ΔTemp Al2O3 B2O3 SiO2 ZrO2 SnO2 TiO2 KNaO K2O Na2O CaO MgO ZnO BaO PbO Li2O SrO
American Shino 10 1.21 5.07 0.02 0.61 0.13 0.48 0.04 0.02 0.33
Carbon Trap 10 1.19 5.12 0.02 0.61 0.11 0.5 0.06 0.02 0.32

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Hazards

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.
Soda Ash Harmful WARNING Causes skin irritation.
Causes serious eye irritation.
2 0 0 B