All the alcohols you buy in the drug store have other ingredients that will leave a residue. While 99% alcohol is very good, there is still residue. The manufacturers add these ingredients so people do not try and use that alcohol (i.e., rubbing, isopropyl, etc.) as a basis for a cocktail. Peter K On 1/22/06, Don Williams <dwilli10@xxxxxxxxxxxxx> wrote: > > At 10:59 AM 1/20/2006 -0800, Dick Burk wrote: > > Dry Isopropyl alcohol is also effective for some types of oil films and > is safe. Isopropyl rubbing alcohol has too much water in it. The residual > water may creep into the mounting. 99% Isopropyl is available at many > drugstores, its not expensive. > > > Interesting you should mention "rubbing alcohol". For years I had been > buying those special eyeglass cleaning pads. > > One day I just dabbed a bit of soft paper towel with the stuff, wet my > eyeglasses thoroughly (wiping a bit) and then dried them with the other end > of the paper towel. Best cleaning job ever, and the paper towel can be used > several times, using different corners. > > I haven't tried that with my car windshield but I would bet it works fine > there, but there may be some wax there so it would take a bit more work. > > Haven't tried that with photo lenses, and don't plan to. > > I usually buy two bottles of the stuff when it's on sale at 2 for 99 > cents. > > DAW -- Peter K Ó¿Õ¬