Category: Glaze > Blue
Created 2015-07-23 09:23:27 by Glazy Admin
Categories: Glaze > Blue
Firing Temperature: Δ6
Surface Type: Glossy

Firing Notes: cool maximum rate to 800C hold 1 hour

Notes: Alisa Clausen: gloss, opaque and covering glaze. Pale blue periwinkle colour, even where thick and thinner.

Material Amount Batch Subtotal
Custer Feldspar 37.8
Silica 24.9
Gerstley Borate 22.8
Whiting 11.2
Strontium Carbonate 3.1
Total Base:99.8
Rutile 3
Cobalt Carbonate 0.4
Total: 103.2

Percentage Analysis

Ingredient Amount SiO2 Al2O3 B2O3 MgO CaO SrO K2O Na2O KNaO P2O5 Fe2O3 TiO2 CoO LOI
Custer Feldspar37.825.896.430.113.781.134.910.040.11
Gerstley Borate22.83.370.
Strontium Carbonate3.12.180.92
Cobalt Carbonate0.40.250.15
100% no LOI 60.147.396.780.8912.012.424.32.276.570.030.473.020.28

Unity Molecular Formula (UMF)



0.11 Na2O
0.13 K2O
0.07 SrO
0.63 CaO
0.06 MgO


0.21 Al2O3
0.28 B2O3


2.94 SiO2
0.11 TiO2


0.01 Fe2O3
0.01 CoO





0.24 : 0.76

SiO2:Al2O3 Chart

Closest 100 neighbors in Glaze > Blue.

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Stull Chart
SiO2:Al2O3 Ratio
SiO2:Al2O3 Ratio 13.76

Similar Base Recipes

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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.
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
Gerstley Borate
Whiting Harmful WARNING Causes eye irritation
Strontium Carbonate Harmful WARNING Product dust may be irritating to eyes,skin and respiratory system.  1 0 0 E
Rutile 1 0 0
Cobalt Carbonate Health HazardEnvironmental Hazard DANGER May cause cancer
Suspected of causing genetic effects
May damage fertility or the unborn child
May cause allergy or breathing difficulties if inhaled
May cause a allergic skin reaction
Very toxic to aquatic life
Very toxic to aquatic life with long lasting effects
2 0 0 *