From: peterwieck33@gmail.com   
      
   > A long time ago I worked in a TV factory where switch and pot cleaners   
   > were not allowed. Dry compressed air was used for all cleaning. Now I   
   > use an aerosol can of compressed air.   
      
   Three things:   
   a) when parts are new, it is unlikely (but not impossible) that there is any   
   accumulation of dust. wear particles or other debris in them.   
   b) "A long time ago", many 'common' chemicals used were either bad for the   
   skin and liver and/or carcinogenic. Or all three.   
   c) Are you using a refillable can of actual compressed air, or are you using a   
   material such as "Duster (CRC) or similar?   
       1. If the former, are you refilling through a filter and moisture trap?   
   Otherwise, what is coming out of that can could have all sorts of nasty   
   contaminants. "Dry compressed air" - as you state.   
       2. If the latter, that is not hardly 'compressed air' but a (supposedly   
   ozone safe) refrigerant analog using fluorine rather than chlorine.   
      
   I use 99% IPA (not the ale), also pressurize in a refillable can, as I see the   
   point being to rinse out the developed skunge. Then a lubricating material to   
   replace what was lost in the cleaning.   
      
   Peter Wieck   
   Melrose Park, PA   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)