Category: Glaze > Specialty > Crawling
Created 2017-09-05 01:53:10 by Sue McLeod
Categories: Glaze > Specialty > Crawling
Firing Temperature: Δ6
Atmospheres: Oxidation
Transparency: Opaque

Cedar Hill Studio new Brain Crawl recipe. Replaces old Brain Crawl. Works better when deflocculated with Darvan.

Material Amount Batch Subtotal
Nepheline Syenite (Theoretical) 40
EPK 30
Silica 12
Magnesium carbonate 9
Zinc Oxide 9
Total: 100

Percentage Analysis

Ingredient Amount SiO2 Al2O3 MgO CaO ZnO K2O Na2O KNaO P2O5 Fe2O3 TiO2 LOI
Nepheline Syenite (Theoretical)4024.289.320.040.281.843.925.760.040.28
EPK3013.7211.210.030.060.10.020.120.080.230.114.44
Silica1212
Magnesium carbonate94.34.7
Zinc Oxide99
Total1005020.534.370.3491.943.945.880.080.270.119.42
100% no LOI 55.222.664.830.379.942.154.356.50.090.30.13

Unity Molecular Formula (UMF)

FLUXES

RO/R2O

0.21 Na2O
0.07 K2O
0.36 ZnO
0.02 CaO
0.35 MgO
STABILIZERS

R2O3

0.65 Al2O3
GLASS-FORMERS

RO2

2.69 SiO2
OTHER

 

0.01 Fe2O3
SILICA:ALUMINA

SiO2:Al2O3

4.13

FLUX RATIO

R2O:RO

0.27 : 0.73

SiO2:Al2O3 Chart

Closest 22 neighbors in Glaze > Specialty > Crawling.

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Stull Chart
SiO2:Al2O3 Ratio
SiO2:Al2O3 Ratio 4.13

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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
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
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
Magnesium carbonate WARNING Causes mild skin irritation
Causes eye irritation
Zinc Oxide 0 0 0 *