Janette10 Posted February 11 Report Share Posted February 11 Can I use clear glaze on top of oxides previously applied on white glaze?(all in biscuit) Quote Link to comment Share on other sites More sharing options...
Min Posted February 12 Report Share Posted February 12 Hi Janette and welcome to the forum. There really isn’t a definite yes or no answer to your question. Some clear glazes can alter the colour of oxide colourants in unexpected ways. It depends on what is in the glaze composition. Example would be putting a clear glaze over a chrome wash or brushwork, if the clear glaze contains zinc the chrome will go brownish. Another example would be if you put a glaze high in calcium over an iron wash or brushwork, the calcium will bleach out the iron colour to lighter colour. You could also get unexpected running or blurring of the colouring oxides. There is also going to be an interaction between the white glaze and the clear. Like most things in ceramics it’s best to try it and see what happens. I’ld suggest making up some test pieces, see what happens with those before committing a “real” piece. Quote Link to comment Share on other sites More sharing options...
Rae Reich Posted February 12 Report Share Posted February 12 If the clear glaze formula is the base for the white glaze, you probably could, with the colorant exceptions noted by @Hulk, but why would you want to? If your oxide decorations are sometimes changing your glaze surface, try mixing a little of the glaze into the oxide. Babs 1 Quote Link to comment Share on other sites More sharing options...
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