Category: Glaze > Black > Slip-Based
Created 2017-07-31 01:41:30 by Sid Henderson
Categories: Glaze > Black > Slip-Based
Firing Temperature: Δ04-03
Atmospheres: Oxidation
Surface Type: Glossy - Semi
Transparency: Opaque

A slip based black glaze that contains ingredients that suspend easily. The glaze can either be diluted or difflocculated to a thinner consistency and applied with a dip-pen.

The high clay content in this glaze makes it great for scroffito work.

This is a low fire glaze containing barium, manganese (from barnard clay), cobalt, and chrome. It is not intended to be eaten off of.
This glaze was created for sculptural purposes.

Material Amount Batch Subtotal
Barnard Clay 50
Colemanite 40
Barium Carbonate 8
Lithium Carbonate 2
Total Base:100
Cobalt Carbonate 1
Soda Ash 0.5
Chrome Oxide 0.5
Total: 102

Percentage Analysis

Ingredient Amount SiO2 Al2O3 B2O3 MgO CaO BaO Li2O K2O Na2O KNaO Fe2O3 TiO2 CoO Cr2O3 LOI
Barnard Clay5023.53.80.350.30.550.30.8516.950.14.16
Barium Carbonate86.211.79
Lithium Carbonate20.811.19
Cobalt Carbonate10.630.37
Soda Ash0.
Chrome Oxide0.50.5
100% no LOI 27.484.4423.770.4113.127.270.950.640.641.2919.820.120.740.58

Unity Molecular Formula (UMF)



0.03 Na2O
0.02 K2O
0.09 Li2O
0.14 BaO
0.69 CaO
0.03 MgO


0.13 Al2O3
1 B2O3


1.34 SiO2


0.36 Fe2O3
0.03 CoO
0.01 Cr2O3





0.14 : 0.86

SiO2:Al2O3 Chart

Closest 15 neighbors in Glaze > Black > Slip-Based.

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Stull Chart
SiO2:Al2O3 Ratio
SiO2:Al2O3 Ratio 10.49

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
Barium Carbonate Harmful WARNING Harmful if swallowed. 2 0 1 *
Lithium Carbonate Harmful WARNING Harmful if swallowed.
Causes serious eye irritation.
Harmful to aquatic life.
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 *
Soda Ash Harmful WARNING Causes skin irritation.
Causes serious eye irritation.
2 0 0 B
Chrome Oxide WARNING May be harmful if inhaled. May cause
irritation to eyes and respiratory tract. Slightly toxic if ingested.
2 0 1 E