Re: tricolor gum question - yellow
Hmm, okay.... Maybe I should have been more precise: Daniel Smith
is the only paint manufacturer I'm aware of whose "quinacridone
gold" is still pure PO49. The idea of mixing PO49 with pthalo green
seems rather dubious to me; obviously they're trying to eke out what
PO 49 they've got left by mixing it with other stuff, in this case
greying it down with an approximate complement, which would tend to
neutralize the warm tone of the PO49. At any rate, pure pigments
are always superior to mixtures, IMO.
On Nov 18, 2009, at 2:14 PM, Paul Viapiano wrote:
Sennelier Q Gold is PO49 + PG7
Paul
----- Original Message ----- From: "Katharine Thayer"
<kthayer@pacifier.com>
To: <alt-photo-process-l@usask.ca>
Sent: Wednesday, November 18, 2009 10:24 AM
Subject: Re: tricolor gum question - yellow
Yes, Daniel Smith is the only manufacturer still using PO 49;
the last of other lines ran out in 2005. So if other brands are
still selling paint called "quinacridone gold" or intending to
substitute for quinacridone gold, it's a mixture of pigments,
most often nickel azo (PY 150) with a red pigment.
On Nov 18, 2009, at 9:48 AM, Linda Stinchfield wrote:
Thank you for the information on quinacridone gold. I used to
get it from Golden, for painting in acrylics, and loved the way
it mixed with other colors. Then the formula changed, the name
became Q. gold nickel azo... and it didn't mix the same at all.
It was a huge disappointment. Last year I found the Daniel Smith
Q. gold watercolor and acrylic paints and have bought several
tubes of each. Maybe I'd better buy some more...
Linda
On Nov 18, 2009, at 6:15 AM, Katharine Thayer wrote:
Actually, PO 49 (quinacridone gold) hasn't been manufactured
since 2001. Daniel Smith bought up a lot of the available
supply at that time; I was told then that there was enough to
make paint into the foreseeable future; the person I talked
to said "Don't worry, we've got plenty." I haven't checked
back since to see how their supply is holding out. But don't
buy it, because Keith and I want it all.
On Nov 17, 2009, at 6:25 PM, Keith Gerling wrote:
I love Daniel Smith quinacridone gold. While I use 3 blues and
8 or so reds, the only yellow I use is the Quin Gold. Very
transparent. Warm, and not garish.
Don't buy it though. Rumor has it that the pigment was
created for the automotive industry (that gold PT Cruiser!)
and that it won't be made anymore. So I want it all for myself!
|