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Cranfield (Caligo) Safe Wash Etching Inks are oil based but they can be washed away safely with liquid hand soap and water. You don't need solvents to clean up these inks. The Etching Inks are suitable for all types of intaglio printing for example, etching, aquatint, line engraving etc. The inks are made using high quality pigments rather than dyes so they offer excellent lightfastness and permanance. The inks carry the AP approved mark so they are non toxic and solvent free.

Tubes in the set are: Black, Process Blue (Cyan), Process Red (Magenta), Opaque White, Process Yellow and Transparent Extender.