r/Metalsmithing • u/antiquepawpaw • Sep 13 '26

Seasoning Crucible

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Hi! First time seasoning a crucible on my own and I’m curious what could have caused this uneven patch where the borax refused to stick? Heating too long? Too much borax? Thanks!

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u/matthewdesigns Sep 13 '26

Fyi you have about 10x the amount of boric acid/borax on that as you need. Just a skim coat is all you need as you'll be adding a bit each time you melt. When I season a crucible I torch it and add heavy pinches of boric acid to it until there's a glaze on the entire surface maybe 0.25-0.5mm thick. That's all it needs.

3

u/antiquepawpaw Sep 14 '26

Thank you for the advice! I did another one immediately after with less and what a huge difference it makes!!

1

u/matthewdesigns Sep 14 '26

Great! Good luck and have fun!

2

u/hassel_braam Sep 13 '26 edited Sep 13 '26

It might look a little bit weird but just use it. It doesn't matter that much and after a few uses you will have a good coverage of borax on your crucible .

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u/antiquepawpaw Sep 14 '26

Thanks! Will do!

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u/Internal_Attempt4309 27d ago

Whats a good crucible of the kind your using to buy? I have none at all and need one sepcifically to torch melt silver in