Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

Adam,

The liquid photo resist I use is made by Peters in Germany. The name
of the company is Lackwerke Peters GmbH + Co KG. Their web site is
www.peters.de and the product is called Elpemer SD 2054. This resist
can be applied by masking off a blank silkscreen and flood printing a
blank copper panel. Any excess can be scraped from the screen and put
back in the container. There is very little waste involved. Cleanup
is with laquer thinner or acetone. The data sheet states that 50 um
lines and spaces are possible with this resist.

Your "wet" lamination method for dry film is an excellent idea. Some
of the better lamination machines use a water mist in addition to
heat and pressure. It is supposed to be a superior method and many of
the shops are starting to use it. I have never tried the wet method
but after hearing about your success I'm going to give it a try. I'll
post a message with my results.

If there is any interest I would be willing to supply blank FR-4
panels coated with dry film and sealed in an opaque light tight
container.

Tom