I use glazes that have a large percentage of metal oxides (eg 4-8%) such as copper, cobalt, brass ... and the slightly less than 1% silver nitrate.
Also adds luster of gold, silver, platinum or/and bronze.
I do reduce in an electric kiln with alcohol.
It is very delicate and dangerous because if is too much alcohol kiln can explode (as it happened to me several times), and if is too small amount of alcohol - the effect will be absent.
Considerable time (sometimes has 5-6 firings) and skill is involved in making this kind of metallic effects and it is not without hazards: physical, chemical, and toxicological.
Yet, when properly done, it is fun, joy and very rewarding!
waaaaw
sarab7070 4 months ago
what type of glaze were you using? How did you reduce in an electric kiln?
wsempel 1 year ago
@wsempel
I use glazes that have a large percentage of metal oxides (eg 4-8%) such as copper, cobalt, brass ... and the slightly less than 1% silver nitrate.
Also adds luster of gold, silver, platinum or/and bronze.
I do reduce in an electric kiln with alcohol.
It is very delicate and dangerous because if is too much alcohol kiln can explode (as it happened to me several times), and if is too small amount of alcohol - the effect will be absent.
But it's not all ...
CarobnjakML 1 year ago
@wsempel II
After the reduction in electric kiln, fuming takes place as the last firing.
Then I use a mix of stannous chloride and bismuth nitrate (this part is most dangerous, may even be lethal so precautions must be at a high level!).
This metal efect is durable and permanent over time. The brilliance will not fade in time nor when periodically exposed to the sun.
CarobnjakML 1 year ago
@wsempel III
Considerable time (sometimes has 5-6 firings) and skill is involved in making this kind of metallic effects and it is not without hazards: physical, chemical, and toxicological.
Yet, when properly done, it is fun, joy and very rewarding!
CarobnjakML 1 year ago