Sorry, but this is just an ill-informed drytek. Firstly, lye should not be used in this way, as it may become a runny, toxic mess, and lye would likely be a bit hazardous at such high concentrations. Secondly, water is necessary for the lye to react, but if the mixture is not dried thoroughly with a desiccant or otherwise, the base contaminated water with will wash out with the acetone.
SWIM would also recommends
limtek.