Homebrew PCBs

Ulano was the company that made the stuff I purchased many years ago.
I think they also made a material called "Rubylith".
Old-time microstripline designers will remember this material.

As I recall, most silk screen inks were spirit-based, and the screen image
was not affected by the paint.

So, I'm thinking that the emulsion would most likely be immune to
most pc board etchants.

Someone should really get into this idea and see how it works.

Roland F. Harriston, P.D.
******************



Randall Morgan wrote:
> Silk Screen Emulsion Source:
> http://www.silkscreeningsupplies.com/diazo-photo-emulsion?gclid=CNDprfSXt68CFYYHRQodu2zWjQ
>
>
> I have no idea if it works but would be interesting to find out.
>
>
>
> On Sun, Apr 15, 2012 at 8:27 AM, Roland F. Harriston <rolohar@...>wrote:
>
>   
>> **
>>
>>
>>