http://www.thinktink.com/cgi-bin/cart.pl?db|photopolymers.dat|Soldermask
The price is very competitive, although the disavantage is that you
must buy a roll. I believe that this company makes a great service of
selling that medium size rolls, since the original roll from DuPont is
only available at 400 ft. and it only sells in a B2B service, not even
to individuals or homebrew makers.
Does anybody has purchased from thinktink in the past soldermask or
photoresist and laminate their own boards? If so, could you explain
your experiences?