Crucible sizes and curing with borax (graphite)
In this video I cure the #6-8kg crucible. Curing a crucible with borax, also called seasoning or tempering, is supposed to make the crucible last longer and not crack as easily. So I suggest curing your crucible before casting with it.

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How to prepare a crucible for metal melting. Tempering a crucible with Borax.

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CRUCIBLE CARE AND MY EXPERIENCE WITH CRUCIBLES

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Seasoning (tempering) Graphite Crucibles with Borax

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Machining a Tool for Making Silver Wire / Drawplate

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How to Season a crucible

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Tempering Brand new crucibles with calcium & Borax

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How to Clean Out a Crucible - Melting Down Gold and Silver

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Walkaway from petrobond

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Make Easy & Stronger Nitric Acid

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Talking about crucibles - How to properly temper a crucible?

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Fast & Easy Way to Prepare Your Crucible for Casting

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Melt Metals in the Microwave | The Ultimate Guide

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Crucible | How to Make Crucibles?| Rajahmundry | Crucible Industries | To Know Everything | Graphite

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Gold Melting How To Glaze A Melt Dish Crucible With Borax

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#63 - How to Make Crucibles for Melting Metals at Zero Cost

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How to easily temper a crucible!

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Gold Melting, How To Glaze A Melt Dish Crucible With Borax

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Graphite Crucible Making | Metal Melting Crucible Manufacturing | Graphite Crucibles Carbon Industry

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Sandcasting a Copper Crucible - Melting Zinc in Copper Crucible - Casting 1KG Clay Graphite Crucible

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