Although acetone may be hygroscopic, it evaporates so fast that any applied to a stock should not have much time to absorb water.

Alcohol exibits the same property and the driest alcohol easily found is 99% isopropyl. Most common concentrations sold commercially to consumers is 70% isopropyl or denatured(ethanol).

Absolute alcohol is available, at least in the ethanol variety.

Acetone is an excellent solvent for most organics, other ketones and xylene are also good.

JJK