[alt-photo] Re: no shrink, no size tricolor gums

[Loris Medici]

Have you tried to decrease exposure and/or dichromate strenght? Seems like
you're overexposure (either too long exposure time or too much dichromate,
maybe both...) to me.

Regards,
Loris.


-----Original Message-----
From: alt-photo-process-list-bounces at lists.altphotolist.org On Behalf Of
Trevor Cunningham
Sent: Tuesday, September 14, 2010 12:47 PM
To: The alternative photographic processes mailing list
Subject: [alt-photo] Re: no shrink, no size tricolor gums

I'm struggling with the yellow layer right now. You know, "flaking" is the
perfect word for what's happening to me. I soak for about 1/2 hour and while
it seems the dichromate clears, the gum/pigment stays. So, soaking for more
time, and a little spray/brushing leads to the unsightly flaking. I got so
fed up I just started scrubbing yellow off the print. Using DaVinci
Aureolin. If the answer is in the curve (I'm using David Hatton's gum curve
from the altphoto site), I don't even know where to begin. I saw a note from
Christine saying most gum trouble comes from coating too heavy...I wonder if
that's what I'm doing wrong.