Cone 6
Works well with colorants.
21.0 – Silica
20.0 – Nepheline Syenite
20.0 – Whiting
20.0 – EPK
20.0 – Frit 3134
2.0 – Bentonite
Cone 6
Works well with colorants.
21.0 – Silica
20.0 – Nepheline Syenite
20.0 – Whiting
20.0 – EPK
20.0 – Frit 3134
2.0 – Bentonite
Do you have an idea how much cobalt carbonate I could add to this to make a dark blue?