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Old 03-14-2018, 08:57 AM
Pete VanderLaan's Avatar
Pete VanderLaan Pete VanderLaan is offline
The Old Gaffer
 
Join Date: Apr 2002
Location: Chocorua New Hampshire
Posts: 21,402
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Normally the highest concentration is 70%. get the highest.

Don't put it outside but it's OK to cover the flask with a-non ferrous cover. It needs to happen as just warm It should take two days though. I'd just put it under the furnace around the back. It's not a violent reaction at all and it isn't really pungent either. The gold shot will just keep getting smaller and smaller. The worst part is putting it in the sand and mixing evenly. Take that outside to do. then bring it bck in and cover the sands and put them in a warm place of they'll never dry. Once dry, screen it. The really wash the screen.

So now I'll tell you a funny story doing this.

At one point I had an employee who did not take direction very well. I mixed up the slop and asked him to put it somewhere warm. He did. He put it on top of one of the main furnaces. The flask tipped over and ate a hole entirely through the crown. I don't know why they call it "Help".
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