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

> Here are two introductory links on positive resists.
>
> http://dot.che.gatech.edu/henderson/introduction_to_dnq-novolac__resists.htm
>
> http://www.ee.washington.edu/research/microtech/cam/PROCESSES/PDF%20FILES/PhotoresistPos.pdf
>
> Let us know how you come along making photoresist at home :)
>
> No seriously, I think the closest you'll get to making photoresists at
> home
> is to go through some old photography books and learn how they used to
> make
> before the days of organic synthesis. I recall gelatin and silver nitrate
> as being some of the ingredients they use to use.
>
> Adam.
>
>

But with silver nitrate you get no resist, it is just "the color".
the gelatin is not washed off where there is no silver nitrate....



Ask the screen printing guys, they ought to know.

ST