Re: Viewports gobbed on with silicon

[protek@shreve.net]

Ken,
    I agree.  I didn't mean to downgrade the use of poly for such
applications.  You should see what a high energy bullet does to Acrylic!!
Impact resistance for Lexan is very good and it would be great as a
barrier.  I do not know what the index of refraction is for polycarbonates
but perhaps it is closer to that of water than acrylic.  This would mean
that a curved piece would perhaps be less bending of light rays under water
and thus less visible with less distortion.  

Gary Boucher
    

At 04:37 PM 8/13/99 EDT, you wrote:
>I think he recommends it as a protective plastic for some applications.
>
>Ken Martindale
>
>In a message dated 8/13/99 4:31:01 PM Eastern Daylight Time, 
>protek@shreve.net writes:
>
><< Thanks Phil!
> 
>     I couldn't think of a better argument than that against polycarbonates!
> 
> Gary >>
>
>