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Old 2012-12-09, 7:52am
cjw cjw is offline
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Join Date: Jul 30, 2010
Posts: 8
Default make your own coloured boro

im looking to melt different oxides in a tube to make my own coloured rod,the only one i now is colbalt oxide to produce blue,its so expensive living in europe to get a good deal on northstar trautman etc do any of you mix your own colours and if so the amount you would put in a tube and do you mix any clear frit with it.......thanks cj
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