Re: ATM Fusing pyrex blanks

[Andy Saulietis <iss@pvtnetworks.net>]

Mary writes,

>	I have access to a whole pile of 16" blanks but they are all 3/4". I
>know that 3/4" is probably adequate if it is supported properly; but for my
>first mirror grinding experience, I don't really want to play around with
>thin glass yet. My question is this. Is there some compound that I can glue
>two of these together with that will not cause distrotions when the mirror
>cools down or heats up ???? 

No. Any glue/cement will create a thermal break &
unless the CTE of the glass is near zero it will
have thermal warping.


Andy Saulietis
ISS Enterprises
39 Silver Fox Trail
Mayhill NM 88339
Voice: 505-687-3067
Fax:   505-687-3021 (call ^ first)
e-mail: iss@pvtnetworks.net