In a message dated 97-10-01 14:00:52 EDT, you write:

<<
 Sorry, no phone #.  The product name is Z-Flex foil, manufactured by:

 Courtaulds Performance Films,
 PO Box 5068
 Martinsville,
 VA, 24115
 USA

 The manufacturer only sells to companies, and only in 24" x 100' rolls.
  You can buy 5 8x10" sheets (ZF-5) for US$45 or 10 8x10" sheets (ZF-10) for
 US$80, presumably from the author's company:

 Lancelot
 PO Box 541005,
 Meritt Island,
 FL, 32954
 USA

 For either 5 or 10 sheets add US$3 for priority shipping to US or CANADA.
  PA residents add applicable tax.  Check or MO only.
  >>
HOLY COW!
This system is a bit pricy for me.  I get all the scrap PC blanks I can carry
from the local PCB house for free and I use Silicon treated mylar to print
and transfer the images. I routinely make double sided PCBs with 15 mil
traces.  It works picture perfect every time.  Screw Ironing.  I use a rubber
mat heater and heat the board not the mylar.  I rub the image on with a small
paint roller.  After a few minutes of rubbing, I remove the hot PCB and swab
the backside of the mylar with a paper towel moistened with ice water.  The
mylar falls off of the PCB.  It is very unusual that I even have to touch up
a trace.
My company uses the mylar for our product so I even get all the mylar I need
for free.
Hard to beat that sort of economics.

Dave Duley