Re: DIY light source for 10X10" enlarger.

"jjs" <jjs.jjs.net> wrote
> > ... rubbing alcohol--it contains oil ...
> It better not contain oil. I use it all the time to wipe plastic before 
> priming it for paint. Ain't no oil in it.

It depends -- there are two types of 70% 'rubbing alcohol': isopropanol
and
denatured ethanol.  The denatured ethanol is for medical use and labeled 
USP.

Then there are 9x% isopropanol and various witch hazel libations.

I have, on occasion, picked up the wrong stuff.  The USP version has a
distinct Doctor's office odeur and sometimes a light pink tint.

-- 
Nicholas O. Lindan, Cleveland, Ohio
Darkroom Automation: F-Stop Timers, Enlarging Meters
http://www.darkroomautomation.com/index2.htm
n o lindan at ix dot netcom dot com