Made from the finest single pigments and polymerized vegetable oil, Caligo Safe Wash Etching Inks are suitable for printing all kinds of block printing, including wood engraving, linocut, woodcut, and letterpress printing with photopolymer plates. - Cranfield Caligo Safe Wash Etching Ink - Opaque White, 500 g CanCaligo Safe Wash Etching Ink, OPAQ WHT 500GM CAN -