From: poutnik4nntp@gmail.com   
      
   Dne 31/03/2016 v 07:26 Peter Fairbrother napsal(a):   
   > On 30/03/16 16:38, Poutnik wrote:   
   >> Dne 30/03/2016 v 17:14 Peter Fairbrother napsal(a):   
   >>> I use a 5% solution of KOH (for Brashear silvering) from time to time,   
   >>> frequently enough so that I don't want to make it up every time, but not   
   >>> so frequently that a bottle gets used up fast.   
   >>>   
   ...   
   >>>   
   >> What time scale to consider.   
   >   
   > Perhaps a year or two?   
   >   
   Is not it long enough not to hesitate to make it fresh,   
   in volume that is about just needed ? It should be small price   
   for not to violate the result, if you are in doubts.   
      
   I really recommend old solution usability comparison test   
   in side by side test silvering of small samples.   
      
      
   --   
   Poutnik ( The Wanderer )   
   Knowledge makes great men humble, but small men arrogant.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)