Re: Cleaning mirrors
Richard.L.Klappal@att.com
Thu, 6 Apr 95 08:34:09 CDT
>> From best.com!owner-atm@ig1.att.att.com Wed Apr 5 23:56:28 1995
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>> Date: Thu, 6 Apr 1995 15:02:02 +1200
>> To: atm@best.com
>> From: D.Beach@irl.cri.nz (David Beach)
>> Subject: Re: Cleaning mirrors
>> Sender: owner-atm@best.com
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>> Just a note on this subject. I have had unfailing success with a final
>> swill of 100% isopropyl alcohol *ANALAR quality*. Anything less than that
>> runs the risk of water/other contaminants. Also, canned "air" comes in
>> various formulae. I have used photographer's negative cleaner quality,
>> blown from 4 inches or so onto the evaporation edge of the isopropyl
>> alcohol. *Very* clean resulting surface.
>>
>> The other advantage of this treatment is that it seems to completely remove
>> static charge.
>>
>>
>>
It is not necessary to use ANALAR grade; REAGENT grade is the same quality.
The difference is that ANALAR publishes a high accuracy analysis of the
contamination that is left; reagent grade doesn't. Same chemical from
the same pipe; costs less if you don't need the precise analysis.
... unless the chemical companies have cheapened things since I used to
sell that stuff (has it really been 20 years ago???)
Rich Klappal
klappal@xnet.com