On Jun 20, 1:10*pm, " wrote:
I find that denatured alcohol works pretty well for aluminum, and evaporates far
faster than kerosene.

Educate me.....Why would fast evaporation be a desirable property for
a cutting/tapping fluid especially since heat is involved? I would
think just the opposite.

In electronics 91% isopropyl alcohol is about the only solvent we can
use now, so we use it everywhere. It's somewhat better than nothing
and doesn't mess up your drawing too badly. The evaporation rate is
reasonable for a cutting fluid.

jsw