Do It yourself Coffee Can Foundry #5 - Initial Fire Up @BillGilmour519

Uploaded November 2015 | Updated September 2026, 1 week ago

In this video, the new furnace gets it's initial fire up. The refractory proves to be good and the new furnace is ready to melt metals.

$Do It yourself Coffee Can Foundry #5 - Initial Fire Up In this video, the new furnace gets its initial fire up. The refractory proves to be good and the new furnace is ready to melt metals.$

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$How To Make Sodium Silicate (Water Glass) It is fairly easy to make sodium silicate and I use it for refractory purposes. It is expensive locally so I began to make my own. In this video I use silica gel cat litter and liquid lye sold locally as BBQ cleaner. You can use lye crystals (sodium hydroxide) and silica gel from the dry packets that come with electronics. The usual mix is 200 gm lye and 300 gm silica gel with maybe 100 ml water. Note that mixing lye crystals into water liberates great heat. Add lye slowly with stirring when making a lye solution. Use gloves, eye protection, and good ventilation.$

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Do It yourself Coffee Can Foundry #5 - Initial Fire Up