Re: [OM] [OT] Solvents and adhesive removal

Subject: Re: [OM] [OT] Solvents and adhesive removal
From: Garth Wood <garth@xxxxxxxxxxxxxxx>
Date: Sat, 18 Nov 2000 08:55:16 -0700
At 02:49 PM 11/18/2000 +1100, Andrew Fildes wrote:
>I think the 70% you're referring to is 70 proof spirit - that's about 40%
>by volume actual ethanol. (Never understood that!) Much better with pure
>ethanol or isopropyl which, I think is the main component of video/audio
>head cleaning fluids.


Nah, it's 70%.  Alcohols not destined for human consumption are always referred 
to in their percentage strengths in Canada, rather than proof.  Proof is also 
rapidly becoming obsolete in the beverage sector -- most distilled spirits in 
Canada now list their percentage of alcohol, although a few imported from the 
U.S. and other places still use "proof."

The two strengths of isopropyl alcohol available in drugstores here are 70% 
(the other 30% being water) and 99%.  I use the 99 0.000000or all kinds of 
cleaning purposes of electronics, fine mechanicals, etc.  However, methanol is 
still better for cleaning optics, I find.


"No, this is the Great Theatre of Life.  Admission is free, but the taxation is 
mortal.  You come when you can, and leave when you must.  The show is 
continuous.  Good-night."

   -- Robertson Davies
      1913 - 1995

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