Similar to Rhinds, the Intaglio Stop Out Varnish is dissolved with white spirit after etching. Our Stop-Out also contains Asphaltum and can successfully be used as an alternative to the now obsolete Senefelders Asphaltum solution. It is an acid resist used in etching and an inking base in lithography. Asphaltum preserves and protects etched plates against oxidation and scratching.
