Yield per 1 lb of Powder: About 9 cups (72 fl.oz. or 2.15L) of material
Ratio: 3.5 to 1 (water to powder) by weight [OR about a 1 to 1ratio by
volume if the powder is not compressed or packed when measured]
purchasing stone to go with this, the following is an estimate: you will
need about equal amounts (by weight) for infant castings and double the
amounts for adult hands. Other types of castings usually fall
somewhere in between.
Basic mixing directions included.
If you will be mixing more than 1lb at one time, it is best to use a
small mechanical (preferably electric) hand mixer of some sort.