Category: Glaze
Created 2000-01-01 00:00:00 by Glazy Admin
Categories: Glaze
Firing Temperature: Δ10
Atmospheres: Reduction

This recipe was imported from Louis Katz's Hyperglaze database available on his website:
More information about Louis Katz can be found on his website,

Louis Katz Notes: I am not a safety expert and any information contained in this file about safety should be ignored in favor of advice from experts. All of the materials in all glazes are potentially hazardous. All of these glaze recipes are given without any representation of accuracy or safety. They may work, they may not. They may be safe when fired or they may not. All of the materials used in them have hazards associated with them. You must be have sufficient training in the hazards before you use the the materials. You will have to determine the suitability and safety for your use. Do not assume that a lack of a warning about a material means that it is safe.

Cone: 10
Color: Opaque White
Testing: Tested
Surface texture: Crawled Islands
Firing: Reduction
Recipe: Percent Batch
Plastic Vitrox 90.00 90.00
Spodumene 10.00 10.00
Totals: 100.00 % 100.00 gm

Material Amount Batch Subtotal
Plastic Vitrox 90
Spodumene (Theoretical) 10
Total: 100

Percentage Analysis

Ingredient Amount SiO2 Al2O3 MgO CaO Li2O K2O Na2O KNaO Fe2O3 TiO2 LOI
Plastic Vitrox9068.8511.430.450.94.50.815.310.450.092.52
Spodumene (Theoretical)106.462.740.8
100% no LOI 77.2614.540.460.920.824.620.835.450.460.09

Unity Molecular Formula (UMF)



0.11 Na2O
0.42 K2O
0.23 Li2O
0.14 CaO
0.1 MgO


1.21 Al2O3


10.91 SiO2
0.01 TiO2


0.02 Fe2O3





0.76 : 0.24

SiO2:Al2O3 Chart

Closest 100 neighbors in Glaze.

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Stull Chart
SiO2:Al2O3 Ratio
SiO2:Al2O3 Ratio 9.02

Similar Base Recipes

No recipes with similar base ingredients and amounts were found.

Similar RO/R2O Unity Formulas

No recipes with similar RO/R2O Unity Formulas were found.

louis katz 2017-04-07 02:34:56
We were long on Plastic Vitrox so I recalculated some glazes using this material. They were OK but harder to use than the normal version. They tended to crawl at bit.


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
Plastic Vitrox Health Hazard DANGER Cancer Hazard. Contains quartz (crystalline silica) which may
cause cancer. Risk of cancer depends upon duration and level of exposure
to the dust. Not an acute hazard.
Prolonged inhalation of dust may cause lung injury. Inhalation of
high concentrations of dust may cause mechanical irritation and
discomfort of the respiratory tract. Repeated exposure may have chronic
Can cause skin, respiratory, and eye irritation.
Spodumene (Theoretical) Health Hazard DANGER May cause cancer by inhalation.
Causes damage to organs through prolonged or repeated exposure.