I have a nice semi matte (satin) base glaze I use with 0.5 % cobalt carb. When I tried it with 3% copper carb it goes more matte. with 3% RIO it becomes shiny. RIO can be a flux at cone 6 temperatures. Probably the semi matte glazes I formulate are right on the edge anyway. It's a lot harder to get a stable satin than a shiny glaze. If you are on the edge then any additive will probably change the surface texture.
Bob CoyleMember Since 06 Jun 2013
Offline Last Active May 13 2015 10:24 AM
I have been doing ceramics for about ten years now, mostly as a hobby. I like to incorporate metal and gemstones into my pieces which I electroform. I develop my own glazes and try to keep to a waxy or semi-mat finish. I like the "arts and crafts" look and the subdued glazes they used on their pieces. Fire mostly to cone 5-6
Lately I have been working more on combining ceramics, metal, wood and even weavings into sculptural pieces.
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