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That produces a solution that can be added to glazes and clay slurries to flocculate them. This being said, it is not necessarily a good idea to add it to slurries as a solution, especially if you have a variable-speed propeller mixer. Creating a thixotropic slurry is a delicate business. The initial challenge is discovering a specific gravity that is not oversensitive or undersensitive to an Epsom salt addition (for many of our dipping glazes, this is 1.43-1.44, a fairly watery consistency). While discovering the right amount of Epsom salts to add can be done by adding this solution we have a propeller mixer and actually prefer adding the crystals by the pinch from a pre-weighed amount. We set the mixer speed to enable visually detecting differences in thixotropy and do a cycle of adding a pinch per gallon, let it mix for a couple of minutes and then stopping to check bounce-back (thus gel). At times the salts get over-supplied (easily undone with a tiny amount of Darvan).
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Epsom Salts
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