Ossa sepia Senefelder 125 ml

Senefelder - Sepia 125 ml asphalt for negative drawing - used to coat the stone and for reverse drawing, including mezzotint on stone. Drying time depends on the humidity and temperature of the room and can take a minimum of approx. 2 hours for a thin layer. It is best to leave it for 24 hours before starting work. The rosin content provides excellent protection against nitric acid.