Stock Paint:Gum Solutions?
- To: firstname.lastname@example.org
- Subject: Stock Paint:Gum Solutions?
- From: Loris Medici <email@example.com>
- Date: Wed, 22 Oct 2008 16:56:55 +0300 (EEST)
- Comments: "alt-photo-process mailing list"
- Delivered-to: firstname.lastname@example.org
- Importance: Normal
- List-id: alt-photo-process mailing list <email@example.com>
- Reply-to: firstname.lastname@example.org
- User-agent: SquirrelMail/1.4.13
I was reading handprint.com's "The Secret of Glowing Color" page, which
contains very good and interesting information, especially in the section
"Not Black, Not Light".
I slowly feel the need of making stock paint:gum solutions, in order to
get more consistency and ease of use. Mixing small amounts of paint:gum
solutions is hard to do consistently, especially with strong colorants and
small image sizes. (Because squeezing small amnt. from the tube is not
I decided to make stock solutions as listed below:
Yellow PY151 1:2 (1:4 final) -> 15ml paint + 30ml gum
Magenta PV19 1:3 (1:6 final) -> 15ml paint + 45ml gum
Cyan PB15:3 1:4 (1:8 final) -> 15ml paint + 60ml gum
Since the stock paint:gum is further diluted 1:1 with dichromate, the
actual paint dilution in the coating solution will be exactly the half of
what it is in the paint:gum solution. (See inside parenthesis.)
This question goes to users of stock paint:gum solutions (such as
Katharine and Christina):
Do you find above figures close to ideal? What is your experience with
those pigments? Anything to pay attention / be careful about using
paint:gum stock solutions?
Thanks in advance,