Re: Litho Film

["Paul A. Lehman" <palehman@xxxxxxxxxxxxx>]

> >I tried it briefly, and had problems with bubbles in the emulsion.  Haven't
> >had time to get back to it.  It was cheap enough to experiment with, but
> >I haven't figured out how to make it work well.
> 
> Bubbles? I'm not familiar with this happening.

Could these "bubbles" that you are referring to be
pinholes in the emulsion? This can happen when using a
stop bath. I was told that the acid causes carbonates
in the emulsion to convert to CO2 and explode out. I
skip the acid stop bath and use a water rinse instead
before fixing when processing sheet film.

Paul A. Lehman