Tinman Posted April 18, 2013 Report Share Posted April 18, 2013 I am new to ceramics and have started working with cone 10 crystal glazes. I am trying to get red under the crystal glaze. I have tried adding copper oxide to the glaze firing it than putting it through reduction at 1700 F for 15 to bring out the red. It has not worked, I sometimes get a little pink but mostly tan. Should I try a red slip and where can I get a formula for it? Link to comment Share on other sites More sharing options...
gypsy Posted April 18, 2013 Report Share Posted April 18, 2013 I sure wish I could help you but you're too advanced for me....good luck finding your red! Link to comment Share on other sites More sharing options...
Pompots Posted April 18, 2013 Report Share Posted April 18, 2013 I am new to ceramics and have started working with cone 10 crystal glazes. I am trying to get red under the crystal glaze. I have tried adding copper oxide to the glaze firing it than putting it through reduction at 1700 F for 15 to bring out the red. It has not worked, I sometimes get a little pink but mostly tan. Should I try a red slip and where can I get a formula for it? A good slip for greenware, 1000 g. of your clay (dried, pulverized), 700g water, 250g Bright Red (inclusion). I really don't know how this would react with the crystal glaze but for sure is a very nice red slip. Link to comment Share on other sites More sharing options...
perkolator Posted April 18, 2013 Report Share Posted April 18, 2013 i know some folks who have had great success using Duncan "Really Red" at ^10. try it under, on top of, or inside your glaze. only problem i have with it is you get a "crayola" red from the mason stain as opposed to a true copper red. you could add it to any slip recipe if you wanted to color it that way as well. it's all about experimentation! Link to comment Share on other sites More sharing options...
Iforgot Posted April 18, 2013 Report Share Posted April 18, 2013 Try using one of the really bright red stroke n' coat Mayco underglazes. I have had luck with them at ^10. Good Luck! Darrel Link to comment Share on other sites More sharing options...
neilestrick Posted April 18, 2013 Report Share Posted April 18, 2013 Copper reds are very specific, touchy formulas that have to be fired just right. Just adding copper to a glaze will most likely not give you a strong red. I would start by comparing some copper red formulas to your glaze recipe to get an idea of what's needed. Link to comment Share on other sites More sharing options...
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