[email protected] wrote:
Most drug store isopropal contain other chemicals to keep your skin from drying out. You can buy electronics grade isopropal. Cheap enough ($5 for a large bottle) if you have a store that stocks it. Fry's Electronics has it. Of course grain alcohol will do the job.
cheap "grain neutral spirits" aka plain vodka works very nicely for many cleaning/solvent uses. Except you are paying the $20/proof gallon tax.
you can also buy 200 proof/100% ethanol at a drugstore, although, obviously, once you've opened it, it rapidly starts dropping to 95% because it's quite hygroscopic. We use ethanol to clean spacecraft stuff at work. I can't remember why we don't use isopropanol... obviously, we can buy it without any additives so it's not the rubbing alcohol problem. Other space folks do use isopropanol, but maybe JPL had some bad experience and once burned, 5000 times shy. Isopropanol forms an azeotrope with a bit higher water percentage than ethanol, but I wouldn't think that's a big deal.
The problem with most denatured ethanol is that what they add to denature it may be fine in perfume or as shellac thinner, but might not be compatible with your electronics.
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