From: blockedofcourse@foo.invalid   
      
   On 12/1/2025 6:39 AM, legg wrote:   
   > On Mon, 1 Dec 2025 04:07:59 -0700, Don Y    
   > wrote:   
   >   
   >> On 12/1/2025 2:56 AM, Liz Tuddenham wrote:   
   >>> Don Y  wrote:   
   >>>   
   >>>> Something optically clear, temperature range of -40C to +60C (70C would   
   >>>> better) that can tolerate daily changes of ~30C for ~20 years.  Ideally,   
   >>>> adherent to a variety of surfaces but I can compensate, if necessary.   
   >>>>   
   >>>> And, not exhorbitantly priced (I need gallons of it)   
   >>>   
   >>> Rigid or flexible?   
   >>   
   >> Not flexible like "rubber".  Not rigid like "glass".  It   
   >> should have some "give" to make it not brittle.  Yet, hold   
   >> its own shape without assistance.   
   >>   
   >> Some of the spans I have to cover are quite large so just   
   >> handling them puts stresses on it.   
   >   
   > Even glass 'fillers' will produce an opaque, not clear, media.   
      
   I don't know.  I have several artist friends who do "outdoor"   
   installations where the pieces have to be coated to avoid their   
   colors fading from weather (sun, precipitation -- though we   
   don't have deep cold cycles, here, which might crack some substances).   
      
   These fare well after many years (decades) of deployment.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)