Category: Glaze > Clear
Created 2017-05-17 08:34:08 by Jayne Bunting
Categories: Glaze > Clear
Firing Temperature: Δ5-6
Atmospheres: Oxidation
Surface Type: Glossy
Transparency: Translucent

A light green ^6 glossy transparent base using ingredients easily available in the UK. Some pin holing, will try slow ramp & cool firing.

In test fired ^6 (1222oC) dipped upto 3 X on Earthstone Smooth Clay

Kiln Schedule
S1. 100oC. 600oC
S2. 220oC. 1222oC. 15 minute hold

Material Amount Batch Subtotal
Silica 32.8
Nepheline Syenite (Theoretical) 24
Gillespie Borate 16.8
Strontium Carbonate 12
EPK 8
Wollastonite (Theoretical) 6.4
Total Base:100
Zinc Oxide 5
Lithium Carbonate 5
Titanium Dioxide 3
Copper Carbonate 2
Bentonite 2
Total: 117

Percentage Analysis

Ingredient Amount SiO2 Al2O3 B2O3 MgO CaO SrO ZnO Li2O K2O Na2O KNaO P2O5 Fe2O3 TiO2 CuO LOI
Silica32.832.8
Nepheline Syenite (Theoretical)2414.575.590.020.171.12.353.450.020.17
Gillespie Borate16.81.980.294.110.653.860.080.630.635.19
Strontium Carbonate128.423.58
EPK83.662.990.010.010.030.010.040.020.060.031.18
Wollastonite (Theoretical)6.43.313.09
Zinc Oxide55
Lithium Carbonate52.042.96
Titanium Dioxide33
Copper Carbonate21.290.71
Bentonite21.190.40.040.020.020.060.080.070.2
Total11757.519.274.110.737.168.552.041.153.054.20.020.153.031.2914
100% no LOI 55.8393.990.716.958.254.851.981.122.964.080.020.152.941.25

Unity Molecular Formula (UMF)

FLUXES

RO/R2O

0.12 Na2O
0.03 K2O
0.16 Li2O
0.2 SrO
0.15 ZnO
0.3 CaO
0.04 MgO
STABILIZERS

R2O3

0.22 Al2O3
0.14 B2O3
GLASS-FORMERS

RO2

2.29 SiO2
0.09 TiO2
OTHER

 

0.04 CuO
SILICA:ALUMINA

SiO2:Al2O3

10.53

FLUX RATIO

R2O:RO

0.31 : 0.69

SiO2:Al2O3 Chart

Closest 100 neighbors in Glaze > Clear.

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Stull Chart
SiO2:Al2O3 Ratio
SiO2:Al2O3 Ratio 10.53

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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
Strontium Carbonate Harmful WARNING Product dust may be irritating to eyes,skin and respiratory system.  1 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
Wollastonite (Theoretical) Health Hazard DANGER Vansil W-30 Wollastonite SDS:
May cause cancer if inhaled.
Causes damage to organs through prolonged or repeated exposure if inhaled. (respiratory tract)
Zinc Oxide 0 0 0 *
Lithium Carbonate Harmful WARNING Harmful if swallowed.
Causes serious eye irritation.
Harmful to aquatic life.
Titanium Dioxide Health Hazard WARNING Suspected of causing cancer
Copper Carbonate Harmful WARNING Harmful if swallowed.
Causes skin irritation.
Causes serious eye irritation.
Bentonite Harmful WARNING Causes eye irritation
Causes skin irritation
May cause respiratory irritation