[Hallicrafters] Alcohols

[Carl]

There are several grades of isopropyl, the cheapest being 70%. Buy the 99.9%

Carl



----- Original Message ----- 
From: "TC Dailey" <daileyservices at qwest.net>
To: <hallicrafters at mailman.qth.net>
Sent: Sunday, July 27, 2008 10:49 AM
Subject: [Hallicrafters] Alcohols


> Not the drinkin' type:
>
> "Rubbing" alcohol is only 70% (look at the label) - the other 30 percent 
> is water and often, glycerine.  The glycerine can leave a sticky film on 
> things, which is why it's simply AWFUL for cleaning tape and video heads.
>
> "Medical" alcohol is 91% - great for cuts and bruises, but it doesn't CUT 
> oily films or ink-type marks.
>
> "99.9% Isopropyl" alcohol is used for cleaning, and prep of surfaces. 
> When I worked for an avionics company, we used it for removal of rosin 
> from PC boards as well.  It WILL cut through Magic Marker and ball-pen 
> ink, removes cigarette smoke films, and cleans oily films from things 
> (very useful and RECOMMENDED for cleaning rubber parts).  If you're going 
> to PAINT something - after the wet-sanding and washing... then AIR 
> drying... moisten a CLEAN cloth with this stuff, and wipe down the 
> surface - then a final wipe with another DRY (clean) cloth - ALL of the 
> paint will stick.
>
> NOTE:  If you clean rubber parts with it, "relube" it with silicon spray 
> (on your fingers) - THEN rub it onto the parts for a like-new appearance 
> that will LAST.
>
>
> ...and that's the truth Pffffft!
>
> TC - WØEAJ
> ______________________________________________________________
>