Inks
Rostow and Jung's Akua inks
Water-based inks cleaned up with washing up liquid.
Akua Kolor for monotypes
Akua Intaglio for drypoint, etching and other intaglio processes
Caligo Safe Wash Inks
Oil based inks but they are cleaned up with washing up liquid, not solvents.
Etching ink for all intaglio processes
Replacement for toxic solvent
Citrus-based cleaner of oil, for example "Zest it"
Ferric chloride is available from printmaking suppliers
Photopolymer film
For example Imagon-Ultra Rapide