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Showing results for tags 'chemistry'.
Hi, I'm trying to get the elusive oxidation copper red with localized reduction glaze to work. Everywhere I look it suggests 600 mesh silicon carbide is necessary to get the localized reduction. The silicon carbide I have is 400 mesh. How can I increase the mesh of my silicon carbide?
Crystalline Glaze Chemistry Several have inquired about this specialty glaze in recent months, so I thought I would post an introduction into crystalline chemistry. The very first thing to do with this glaze is: throw out your glaze calculator and UMF spreadsheet: they do not apply to this glaze nor can you bring it into unity. Basic cone 6 through 10 crystalline recipe is: 50% ferro frit 3110, 25% zinc oxide, 25% silica 325m, and a seeding agent (see later). ^ Lithium carbonate flux additions discussed later. This is the basic crystalline glaze r
I have just started making my own glazes, I purchased the raw materials and I used my friend’s hood in her lab to mix up some of the glazes. I have bisqued pieces and the first coat of the glaze went on easily, BUT when I went to apply the the second coat it dried almost as quickly as the brush touched the pot, making it nearly impossible to apply a second coat. It was as if the glaze crystalized upon touching like in a supersaturated solution, but the glaze was well mixed and not supersaturated. This was with “Tin Foil II” and “MFE Turnidge”. I did not wait long between coats…