From: hermit 
To: Mel Bartels 
CC: "Atm-US (E-mail)" 
Reply-To: hermit 


Mel Bartels wrote:
>
> Well, one question that remains unanswered in my mind goes like this.
>
> Are there any modern adhesives that match particular coefficient of
> expansions with commonly used glass (plate, pyrex, whatever), that if used
> with precision ground surfaces to mate, would result in a bond that would
> not distort the glass and that could survive aluminizing and the vagaries of
> time?
>

If you only have two layers, do they really need to be bonded?  If they are
precision ground, maybe against each other to 320 grit, then keeping them
from sliding relative to each other may be enough.  OK, you wont' be able
to look down over the cliff at the heavenly bodies on the beach below.  But
most skyward heavenly bodies shouldn't be a problem.

Ken

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