Homebrew PCBs

Acrylic paint is water cleanup yet as Stefan points out, once it's dry
that's it.

And the whole point is to use something that -can't- be dissolved by
water once it's dry.

Skip the color for now. As pointed out, test coverage by a quick etch.

And it might help the Mop and Glo to stay in place if (as suggested
here much earlier) after you clean the board, give it a very short
etch in the acid, rinse and print. This will give the surface a
slightly rough finish which may prevent the Mop and Glo from simply
beading up.

My point about the salt is that you don't know how Mop and Glo is
going to react with the salt. Salt breaks up into sodium and chloride,
that is how all salts dissolve in water. This means they tend to be
very reactive.

Also, a word about pigments: pigments are made of chunks of color.
Pigmented inks made for inkjet printers are specially made to have
chunks small enough to go through the whole kit-and-kaboodle. Paint is
not.

If I weren't so broke, I'd have tried to get some of the Staedler Red
ink and tried it myself. It might mean the printer has to be cleaned
more often, but that's a small price.

Steve

--- In Homebrew_PCBs@yahoogroups.com, pebo festus <mebo31@y...> wrote:
> I feel one would need to stay with ink fluids that can
> be cleaned with water solvent cleaners. from my
> experence with paints, if a solvent based ink dries in
> the head there is no way to clean it, it drys hard and
> solvent cleaner would not penatrate the pluged nozzel.
> just stating my thoughts. i may be wrong. it is a
> tough issue. have googled about banner printers but i
> dont know what size printer holes thay have and
> probably could not get the ink in small amount.
> I read the label on the ritz dye about the salt( i am
> not a chemist) but if the salt is desolved the salt
> particles should not be very large and should pass the
> printer holes.please correct me if i am wrong. if i
> have damaged this old epson stylus color II print head
> i may be looking for another one because it converts
> to a flat bed very easy for me.
> every one keep the suggestions coming, i need all the
> help i can get.
> mebo
>