Thanks for the info. It seems like all the sprays mentioned in the
thread use some sort of evaporating carrier (hexane, aliphatic petroleum
distillates, 1,1,1 trichlor, etc.) I suppose the carrier would
normally evaporate. But on windows, there are so many nooks and
crannies and weatherstrip that the stuff takes a week or more to
completely evaporate.

George wrote:

Probably the easiest way to get what you want is to go to an automotive
parts store and buy a tube of silicone dielectric grease. It is a vaseline
consistency pure silicone that will do exactly what you want with no odor.