RE: SE-1 + Wetting Agent - Shelf life
Title: Message Hi
Richard, I haven't used this particular emulsion, but here's what I've
experienced with Jessop's, Liquid Light and Tetenal work. I separate my emulsion
into black film containers and don't add any wetting agent at that stage (or
ever come to think of it! I do add a little alcohol to cut foaming when I
reactivate. Wouldn't wetting agent cause coating problems with bubbles?). I
always keep the containers in a black bag or box until use, as I'm not totally
convinced they are lightproof. Also, when you heat them up, the tops can pop off
so always reactivate under safelight ,or in the dark. I've coated plates with
emulsion and come back to them over a year later. They still print perfectly. I
always harden the emulsion with formaldehyde before coating glass, it's the only
way I can prevent frilling and lifting of the emulsion during development. I
think age-cured emulsion (more than a month) doesn't have as many frilling
problems. Well, at least that's my experience.
Cheers
Kate
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