The two day Pt-Pd printing session had good and bad moments.
What I learned:
- Sodium Citrate developer at 40-45c creates a nice warm tone.
- Arche Platine paper is easy to mark accidentally, has a strong toothy look and is difficult to clear of yellow Ferric Oxide (at least with Citric Acid and Sodium Bisulfite clearing baths). Might be easier with EDTA.
- Hahnemuhle paper and standard developer Potassium Oxalate might be easiest to work with.
- I needed more humidity in my paper.
- Not pouring the Pl-Pd liquid onto the paper but instead taking it from a cup ant then costing, prevents a deep absorption stain mark.
- I do not need to tape the paper(risking tears) to get a straight edge print look. Simply mark picture corners and coat carefully within, then block those excess areas with rubylith. All unexposed coating will clear away leaving square/flat edges.
Various Platinum-Palladium and Platinum prints.