On Tue, 31 May 2016 07:15:41 -0700 (PDT), curls
wrote:

Found the 99% -- at Micro Center. (Maybe Best Buy or Radio Shack carries it too.)

Alcohol is hydroscopic (absorbs moisture from the air). Your 99% will
go down to 91% if you leave the bottle open. Fortunately, it takes
some time so you don't need to be fanatical about replacing the cover.
https://en.wikipedia.org/wiki/Azeotrope
Note that 70% alcohol is what you want for a disinfectant because some
water is needed to kill of hydrophylic bugs.

I should probably buy some 99% alcohol for lens cleaning, but have
been getting away with using the 91% stuff without streaking.

http://www.ebay.com/sch/i.html?_nkw=99%25+alcohol
Ugh... about $8/pint

--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558