Seasoning tempering Graphite Crucibles with Borax

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I am seasoning (or tempering) my new graphite crucibles with borax. First I cook the crucibles in the oven to get out any moisture. Then I melt and coat the inside of the new graphite crucibles. This process will extend the life of the crucibles. • Propane foundries (there are different sizes so make sure you get the size you want: • https://amzn.to/2WvhUA8 • https://amzn.to/2EHc84m • Crucibles: • https://amzn.to/2WtGP77 • https://amzn.to/30W2iVt

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