Homebrew PCBs

On Wed, 2009-06-24 at 16:37 +0000, Steve wrote: 
> 
> I'm sure it is UV cured polymer/acrylic. It has been in use in the
> electronics industry for a long time, and has been used in the gift
> industry to make stickers.

Every LPI soldermask i know about uses resin and hardener.
There really is a type of epoxy 1 part only cured in UV or very hot
temperatures. The prices are about 45+ usd for 30ml, to 100+ usd for 1
gallon (or 15usd for 2oz as a surfboard glue). So the epoxy green
soldermask which originated the thread really seems a great deal.



> Don't confuse UV -cured- polymer with UV -resistant- outdoor ink.
> Nothing similar.

I know the diference, but yes i ended mixing them in the line. Most
outdoors are printed in paper, and not with the ink i was writing about.


> I think "sensitizer" is the word you are looking for?

Yes! And sorry for my bad writing again. I should write less or use the
dictionary more often.