Category: Glaze > Iron > Kaki, Tomato Red
Created 2009-05-27 09:00:00 by Glazy Admin
Categories: Glaze > Iron > Kaki, Tomato Red
Firing Temperature: Δ6
Atmospheres: Oxidation
Surface Type: Glossy
Transparency: Opaque

Glaze Type: Iron Saturate
RIO 10-12% works well.
Must have adequate thickness and slow cooling to get good color development.
Shinier than John Post's Tomato Red.

+2% rutile for pumpkin orange
12% gives bigger crystals. Pete Pinnell in Clay Times.
May/Jn 2009, p.21.Shinier than Tomato Red John Post

Material Amount Batch Subtotal
Kona F-4 feldspar 33.6
Silica 23.7
EPK 12.5
Bone Ash 10.7
Frit 3134 9.8
Magnesium carbonate 5.9
Whiting 3.8
Total Base:100
Red iron oxide 10
Total: 110

Percentage Analysis

Ingredient Amount SiO2 Al2O3 B2O3 MgO CaO K2O Na2O KNaO P2O5 Fe2O3 TiO2 LOI
Kona F-4 feldspar33.622.426.580.020.571.612.323.930.010.07
Silica23.723.7
EPK12.55.724.670.010.020.040.010.050.030.10.051.85
Bone Ash10.75.974.540.19
Frit 31349.84.562.261.971.011.01
Magnesium carbonate5.92.823.08
Whiting3.82.131.67
Red iron oxide109.50.5
Total11056.411.252.262.8510.671.653.334.994.579.610.057.36
100% no LOI 54.9510.962.22.7810.41.613.254.864.459.360.05

Unity Molecular Formula (UMF)

FLUXES

RO/R2O

0.16 Na2O
0.05 K2O
0.57 CaO
0.21 MgO
STABILIZERS

R2O3

0.33 Al2O3
0.1 B2O3
GLASS-FORMERS

RO2

2.82 SiO2
OTHER

 

0.18 Fe2O3
0.1 P2O5
SILICA:ALUMINA

SiO2:Al2O3

8.51

FLUX RATIO

R2O:RO

0.21 : 0.79

SiO2:Al2O3 Chart

Closest 100 neighbors in Glaze > Iron > Kaki, Tomato Red.

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Stull Chart
SiO2:Al2O3 Ratio
SiO2:Al2O3 Ratio 8.51

Similar Base Recipes

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
Tomato Red #3 Pete Pinnell 6 0.33 0.1 2.82 0.21 0.05 0.16 0.57 0.21
Val Cushing Base 7 6 0.3 0.09 2.81 0.23 0.13 0.1 0.57 0.21
R71- Copper brown 5-6 0.35 0.09 2.82 0.24 0.19 0.05 0.55 0.21
R71- Yellow Green 5-6 0.35 0.09 2.82 0.24 0.19 0.05 0.55 0.21
R71- Green Yellow 5-6 0.35 0.09 2.82 0.24 0.19 0.05 0.55 0.21
R71- Copper Green 5-6 0.35 0.09 2.82 0.24 0.19 0.05 0.55 0.21
R71- Iron Copper 5-6 0.35 0.09 2.82 0.24 0.19 0.05 0.55 0.21
R71- Iron Yellowish 5-6 0.35 0.09 2.82 0.24 0.19 0.05 0.55 0.21
R71- Green Yellowish 5-6 0.35 0.09 2.82 0.24 0.19 0.05 0.55 0.21
R71- Green River 5-6 0.35 0.09 2.82 0.24 0.19 0.05 0.55 0.21
R71- Base 5-6 0.35 0.09 2.82 0.24 0.19 0.05 0.55 0.21
Kaki Tomato Red 5-7 0.33 0.1 2.82 0.21 0.05 0.16 0.57 0.21
Xavier Jade Green Base 6 0.31 0.09 2.83 0.22 0.12 0.1 0.57 0.21
EV Blue 6 0.36 0.05 2.86 0.25 0.22 0.03 0.54 0.21

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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
Silica HarmfulHealth Hazard DANGER From 200-Mesh SDS:
May cause cancer by inhalation.
Causes damage to lungs through prolonged or repeated exposure by inhalation.
* 0 0 E
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
exposure.
1 0 0 E
Bone Ash
Magnesium carbonate WARNING Causes mild skin irritation
Causes eye irritation
Whiting Harmful WARNING Causes eye irritation
Red iron oxide Health Hazard WARNING May cause damage to lung through prolonged or repeated exposure by inhalation