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Re: Replacing mirrors
this is water/salt induced corrosion of the metallizing
>compound ( it's probably not silver).
Stainless, sputter coated in a vacuum chamber. Normally layers of
silicon would be sputtered on to protect the metal from the salts in the
glass and environment. Perhaps they decided to save $ or had some
perfectly good reason to leave it off (thermal conductivity?). I mostly
worked with LCD glass. Moisture creeping into the edges interacts with
the minerals in glass to corrode coatings.
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