azjoe Posted August 3, 2010 Report Share Posted August 3, 2010 I was attracted to a nice ^6 ox. red test tile I saw on June Perry's site and tried it... what I got was more of a rasberry red. I dickered with the amount of chrome a little, but always get the same color... a rasberry/maroon. (My test tile was b-mix, same a June's site indicated she used.) In searching further, I found it interesting that the recipe appears many places... some call it red, others rasberry, some cranberry, and as I recall there was a maroon and also a wine color mentioned somewhere... all exactly the same recipe. Some list it as a gloss, some not (in my tests the base is definitely a nice clear gloss that doesn't run at all, btw). Cone: 6 Color: Red Firing: Oxidation Surface: Glossy Amount Ingredient 21 Gerstley Borate--1999 16 Nepheline Syenite 11 Kaolin--EPK 20 Whiting 32 Silica 100 Total Additives .15 Chromium Oxide 5 Tin Oxide Unity Oxide .112 Na2O .026 K2O .006 MgO .856 CaO 1.000 Total .292 Al2O3 .246 B2O3 .003 Fe2O3 2.707 SiO2 .001 TiO2 0 P2O5 9.3 Ratio 69.8 Exp Comments: Transparent ----------------------------------- Calculations by GlazeMasterâ„¢ www.masteringglazes.com ------------------------------------ Has anyone (besides June) ever been able to get this recipe to be more "red" (which I assume would be achieved by pushing it in the "pink" direction). I've seen pictures of chrome-tin pinks but never a discussion of what controls the transition between pink and maroon? I tried boosting the Chrome to .175 and .2... both yielded the same color, just the density of it in the clear increased. My scale has a resolution of .1g (which probably means an accuracy of +/- .05g) so my test batch was 400 grams to deal with the potential scale error in measuring such a small chrome content... so, I thought before I started mixing more batches this large I would see if anyone else has been down this path before with better results. Link to comment Share on other sites More sharing options...
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