I have a question about the compatibility between cyanotype and aluminum.
Does a coated sheet can be placed on an aluminum surface without being “contaminated” during the drying process?
I am asking you this question because I am planning to make a mobile drying rack.
I know that cyanotype is fully incompatible with any ferrous metal,
but I don’t know if this is the same with aluminum…
It'll cost you tenths of a penny to coat a sheet of paper and I'd be amazed ifyou didn't have some aluminium foil in your kitchen, or at least know someone who does. A neighbour perhaps?