Taking an AltPro class, trying to print on metals

[Danellefish]

Hey, all. I'm working on a project for an altpro class and I am determined to print on metal. Although Albumen would probably be the better way to go, I had already purchased chemicals for cyanotypes and vdbs before I realized this. Has anyone printed either processes on metal? How were your results? Mind sharing your process?

My ideas include printing onto sheet aluminum with a gel medium coating for the emulsion to stick to, or coating the metal first in a glossy white spraypaint, then using the gel and printing. These are just off-the-top-of-my head thoughts. I am concerned about setting a white point, as my metals aren't (obviously) white.)

Would love some advice!

Thanks!

 

[michael9793]

Glue paper to your metal plate like they do for 4 color gum printing. after sizing it

 

[Vaughn]

You can use aluminium sheets that have been either painted or powder-coated white.

One issue you will need to deal with when coating with gelatin is that the metal will expand and contract with changes in temperture and finely crack the gelatin. Some have found a coating of polyeurthane on the metal will help to reduce this.