Re: UV Transparency
Alan H. Duke (aduke@pimacc.pima.edu)
Thu, 27 Feb 1997 16:32:00 -0700
Peter Bergstrom wrote:
> 
> >>>>> Kerik Kouklis <KOUKLIS_KERIK@aphub.aerojetpd.com> writes:
> 
> > Maybe I am missing something... I sometimes use mylar between my neg
> > and my pt paper when printing.  There is no difference in exposure
> > times with or without mylar...
> 
> I was wondering about this too - mylar is a brand name for a polyester,
> according to Light Impressions' catalog.
> 
> >From a very quick information search, it does appear that *mica* has some
> level of opacity in the 400 to 700nm wavelength range.
> 
> Pete
The Dupont web site http://www.dupont.com/ indicates that Mylar is a
registered trademark of the Dupont Company.  Unfortunately, the site
seems to have no information on Mylar films, but there is a lot of other
information.
Al Duke