[R-390] Acetone solvent

[Gordon Hayward]

> A word on acetone: it polymerizes and leaves an organic residue. If you
> want a clean surface wash off the acetone with distilled water and then
> bake off the water film after shaking out the drops that you are able
> to. (Baking would be at about 240 F (120 - 140 C ) for a day or 2. I am
> assuming that you are talking about the 2 larger metal tuning knobs.)
> Before baking non metal parts test to be sure that they will not be
> damaged.

I disagree.  Clean acetone doesn't polymerize and doesn't leave residue.
A long time ago we used to dry lab glassware with acetone because it forms
a low boiling azeotrope with water. That said, now we avoid releasing VOC's.

You need to be careful with acetone because it dissolves a lot of plastics
and can easily ruin nice surfaces. 2-propanol is a lot less aggressive.
Both are flammable.

Cheers, Gord VE3EOS