I am attempting to to cause some blistering and bubbling of glazes by adding silicon carbide. These fired to cone 9 (2300f) at medium speed.
This one did nothing, maybe I need to go hotter at a faster speed? I do like the base ash glaze though.
This was right next to the above and there is some eruptions happening here.
This ash and silicon carb was applied too thin for any kind of bubbling, but I do like the way it came out.