RE: gloy for tricolor on yupo?

Well Katherine, I'll cut this short. Yes, I know such a person (a well
known gum printer - that's the reason of my insistence in discussing
this issue). I'm concluding (he/she)'s not reading the list anymore
because (he/she) didn't chimed in... Will contact (him/her) privately
and ask (him/her) to share (his/her) experience in using gloy on
impervious surfaces. Let's hope (he/she)'ll be kind enough to share this
information with you (and maybe others).

You can bet I'll try this myself too (with homemade PVA and/or PVAOH
colloid) - after I digest all that information provided regarding this
issue, in order to be able to ask for the right PVA from local
suppliers. I do really want to make pigment color prints - I'm pretty
determined on this - and want to explore all probable shortcuts before
jumping into relatively slow processes like tri-color gum / duocolor gum
over cyanotype / color carbon(!). I really want to be able to finish a
color print in one evening (I'm a pretty impatient person when it comes
to getting results). I would be doing temperaprints now - instead of
struggling so much - but I really don't like (really!) the smell of
exposed / warm-dichromated-whole egg - I have a pretty sensitive nose (I
must admit that I also don't like much temperaprint's surface texture -
caused by the foam roller...)

Regards - hoping to find out if earth's flat or round,
Loris.

P.S. It seems that I didn't manage to cut it short ;). Anyway...

-----Original Message-----
From: Katharine Thayer [mailto:kthayer@pacifier.com]
Sent: 31 Mart 2006 Cuma 21:16
To: alt-photo-process-l@sask.usask.ca
Subject: Re: gloy for tricolor on yupo?

On Mar 31, 2006, at 5:10 AM, Loris Medici wrote:

> What about glass? My few experiments w/temperaprint made me think that

> it should also work on glass (or any other impervious surfaces such as

> ceramic tiles, metal ect...) I also tried it on back of RC paper
> and it
> works there too...

I guess I don't see the relevance of this information to my
question. It's already been established that temperaprint emulsion
behaves differently from gum. Whether temperaprint behaves the same
as a gloy-like substance, or as dichromated PVA alone, or behaves
differently from them, or whether these substances behave the same
or different from gum, or even whether the two of them (gloy and
plain PVA) behave the same or differently from each other, is
something that would have to be demonstrated, not just supposed.

I repeat my question: do you know of anyone who has successfully
printed tricolor gloy on untreated glass or on yupo. (I do know of
one person who prints tricolor gum on glass, but in his case the
glass is treated with a silane sub). If not, I just don't have any
more patience with all this guessing and supposing about how gloy
"should" work better than gum to print on these surfaces, simply
because it's more "gluey" in quality. Looking out across the flat
ocean, I could assume that the earth is flat, because it "seems"
flat; I don't see any curvature in the horizon as far as I can see
from north to south. But however much it *seems* to me that the earth
should be flat, that doesn't mean that it is.
Katharine
Received on Fri Mar 31 13:20:35 2006