U of S | Mailing List Archive | alt-photo-process-l | Gum Arabic Froth

Gum Arabic Froth

I'm mixing up my first "real" batch of gum from powder (1g gum + 2ml H2O).
Cold water seems to work the best. But after the initial stirring it's very
frothy (and chunky). Is this normal? What do people do with the froth? Skim
it or let it flash off. On a 25g + 50ml batch I used 10 drops of Formalin to


RNP Arrays: Open Source Digital Negative Project