U of S | Mailing List Archive | alt-photo-process-l | Re: First Tricolor Gum (on aluminum)

Re: First Tricolor Gum (on aluminum)



Loris,

Congratulations on printing tricolor on aluminum!

A couple of observations:

- If you printed cyan, or blue, first, it would be very easy to register by eye. The red layer may then be dominant, but if you are going to apply a black, or anything dark at the end, the red/magenta cast would be toned down.
- You would definitely need a curve specifically for the new surface. Even with paper, surface differences sometimes require different curves.
- We can buy aluminum flashing already coated with white paint on one side. If it works, then you would not need to apply gesso and save a little work.

Again, congratulations and I'll look forward to seeing what else you'll do with it!

Sam

On Dec 10, 2006, at 11:43 AM, Loris Medici wrote:

Hi all,

I just wanted to share my very first tricolor gum print (a test print actually) on aluminum (actually on any media). I just realized that I set a too hard target for a beginner because:
1) Working with aluminum is not easy (have to put two coats of acrylic gesso + two coats of gelatine/CaCO3 mixture - a trick I learned from Keith Gerling, tonal range and development is quite different from what is it on paper),
2) Starting with tricolors instead of (more forgiving) multilayer monochromes may not be the most logical route to take,
3) Aluminum is a stable support/media but this doesn't necessarily mean that registration is easier and more successful - you have to use some kind of mechanical registration / you can't register by eye.
4) The whole process is definitely not for the faint-hearted.

Anyway, the print is here:
http://www.loris.medici.name/Tricolor_Gum_on_Aluminum.jpg

It's still missing the K layer + as you can easily spot the M layer is not correcly registered. A very rough print...

Anyway, let me express my immense admiration for people who are able to make wonderful prints with this process. Respect!

Best regards,
Loris.