Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, "art_lammoglia" 
<art_lammoglia@...> wrote:
>
> Hello group.
> 
> Was interested in possibly experimenting with ER-71 liquid photo
> resist. While searching the archives I came across some discussions on
> a waterborne product from a company called Advanced Coatings Intl.
> I believe the product name is AQ-3000.
> 
> Did anyone try this product out for PCBs? I'd love to hear anyones
> comments on this product, ER-71 or any other liquid resist.
> 
> TIA
> Art
>

I recommend that if you are going to do serious work (or at least if 
your are expecting worth the effort) forget about the ER-71 and go for 
the AQ-3000 route.

There is no comparison between both products. The ER-71 is a hobbyst 
product that you will find with very erratic results. The AQ-3000 (I am 
still waiting for use it but I am reaconditioning my small pcb shop and 
acquiring the necessary equipment yet) is intended for professional use 
so you can expect very high quality every time if you follow the 
directions.