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   sci.optics      Discussion relating to the science of op      12,750 messages   

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   Message 12,063 of 12,750   
   Glen Walpert to Phil Hobbs   
   Re: Opticlean Polymer--where to get an e   
   16 Jun 15 00:53:36   
   
   From: nospam@null.void   
      
   On Mon, 15 Jun 2015 17:49:59 -0400, Phil Hobbs wrote:   
      
   > Hi, all,   
   >   
   > I went to buy some Opticlean strippable polymer for cleaning lenses, and   
   > whadda ya know, it's gone, along with the company (Bradford Labs in   
   > Milpitas) that made it.   
   >   
   > It's a solution of polyvinyl alcohol in some polar solvent like methanol   
   > or stabilized tetrohydrofuran, and it's great stuff.  You put it on at   
   > the rate of about 1/4 teaspoon per square inch, wait a little while for   
   > it to dry, and strip it off with tape, taking fingerprints and dust with   
   > it.   
   >   
   > Before I go trying to make my own, does anybody have a source for good   
   > quality strippable lens cleaner?   
   >   
   > Thanks   
   >   
   > Phil Hobbs   
      
   I did a bit of a search because I could not recall the name collodion, a   
   readily available peelable coating often used for optical surface   
   cleaning, sometimes with coating loss, probably exactly what you were   
   trying to avoid with Opticlean, and I stumbled upon:   
      
      
      
   "'First Contact' liquid replaces the 'Opticlean' liquid which is no   
   longer available. The product is virtually identical and is equally   
   effective. ..."   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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