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Okay, I just opened a test firing in my tiny kiln, mostly testing a new glaze with various slips and double dipped other glazes. I had a couple pieces come out with pink flashing on this glaze. I'm familiar with the problem caused by chrome and tin, but there is no tin in this glaze, and no strong source of chrome in any of the other glazes (small amounts of chrome in some glaze stains, used in very small amounts, resulting in very pale blue-green glazes. Also, no tin in the other glazes. There were a couple pieces with glazes carrying 2 percent cobalt carbonate. But that's the only strong colorant in the batch. The glaze in question is a fairly simple glaze, designed to be active and pick up color from underlying slips. It has 10 percent gerstley borate, 6 percent titania, and 6 percent lithium carb. My best guess is that something is reacting with the titania. The problem (actually I like the effect and would like to figure out a way to reliably produce it) is obviously from something fuming off a nearby piece, because of the way the affected pieces were only colored pink on one side. It's not from underlying slips, as the piece I'll post a pic of was not decorated with slip. Anyway, I'd appreciate any insights or observations regarding this.

Hi, I have been advised that a bodystain is no different as a glazestain and a bodystain can be used as a glazestain and vice versa. I have fired a batch of testtiles with a pink Al-Mn bodystain mixed with 3 tipes of baseglazes I usually use for stains, and the result has been disappointing, with almost no coloration, and not a good melt. I have been trying to find out what went wrong, and found on digital fire a sentence that sais that bodystains normally do not melt appropriately when used as glazestains. I have also found in Matthes that if you use a Al-Mn pink stain you have to use a High viscosity glaze with a lot of Al2O3 and little ZnO and or B2O3. One of the glazes has ZnO so that is logical. The other glazes have no ZnO and B2O3 of highest 0.33, lowest 0.20. What do you think went wrong? Is there anybody who has experience in using bodystains as glazestains? gr. Lies