From: "James Lerch" 
To: "ATM List" 
Reply-To: "James Lerch" 


----- Original Message -----
From: "Mel Bartels" 


>
> 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?

Hi Mel,

I can't offer any advice on adhesives that won't distort the glass, but I
can say that GE clear silicone and JB-Weld epoxy both went thru my
Junk-yard aluminizer with out issues.  (I coated my bino-mirrors with the
cells still attached)

If anyone's interested in experimenting, I'll be happy to run samples thru
the coating chamber and see what happens.. (can currently do up to
11.5" diameter objects)

Wasn't 'Super-Glue' originally manufactured as an optical lens adhesive?

Take Care,
James Lerch
http://lerch.no-ip.com/atm (My telescope construction,testing, and coating site)

--- BBBS/NT v4.00 MP