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Re: Story about plastics (and metal)

  • From: P3D Bob Wier <wier@xxxxxxxxxxxxxxx>
  • Subject: Re: Story about plastics (and metal)
  • Date: Sat, 15 Jun 1996 23:35:51 -0600
|Just as a side note to the archival quality of plastics, I heard recently that 
|someone who collects toys had an old Fisher-Price pull toy from the 50's mint 

Etc. deleted

A similar note may be made about devices which include parts made
of "pot metal" (I forget the alloy right offhand - tin/zinc? - or is
that batteries?). Anyway, it turns out that there occurs a spontaneous
decomposition of that alloy when exposed to the atmosphere - it swells
and becomes very crumbly and soft.

I can't recall any cameras which exhibit this problem, but it's a 
continual topic of conversation on groups dealing with antique radios,
autos, and so forth.

THANKS!

   ====== wier@xxxxxxxxxxxxxxx ======
    11:05 PM Saturday, June 15, 1996
   keeper of the Photo-3d, Motorola
 MC68HC11, Overland-Trails, LDS State
Research Outline Guides and other stuff
     (currently in Ouray, Colorado)
 



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