Wyndham Posted May 23, 2018 Report Share Posted May 23, 2018 I have a frit that I can not find a substitute for. I have also never understood unity formulas as well. I'm hoping someone cal help translate this back to raw materials The frit number is 1290 it has only 4 components NaO .50 Cao .50 B2O3 1.00 and silica 2.oo Am I guessing correctly that 1 part borax i part whiting and 2 parts silica would be some thing close to the frit or is there a better set of ingredients to use Thanks Link to comment Share on other sites More sharing options...
neilestrick Posted May 23, 2018 Report Share Posted May 23, 2018 Borax is soluble, so not a good substitute. Post the recipe you'll be using and one of us can reformulate it for you. Link to comment Share on other sites More sharing options...
Wyndham Posted May 23, 2018 Author Report Share Posted May 23, 2018 Great, 1290 16.36% The frit number is 1290 it has only 4 components NaO .50 Cao .50 B2O3 1.00 and silica 2.00 Custer feldspar 18.39 Dolomite 17.55 whiting 2.50 EPK 16.85 Silica 23.95 Titanium Dioxide 3.42 Cobalt oxide .74 Iron Ox .02 NiO .28 It's a variation of float blue I'd like to test. The frit has thrown me off as could not find a substitute Thanks for any help Wyndham Link to comment Share on other sites More sharing options...
neilestrick Posted May 23, 2018 Report Share Posted May 23, 2018 @Wyndham Here are 2 versions, one using Gerstley, the other using Frit 3134. Link to comment Share on other sites More sharing options...
Wyndham Posted May 24, 2018 Author Report Share Posted May 24, 2018 Thanks Neil, I'll run both and see what happens. Wyndham Link to comment Share on other sites More sharing options...
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