Cranfield's Caligo Safe Wash Oil is an printmaking ink modifier that thins and dilutes ink. Made with the same linseed oil medium as Cranfield Safe Wash Etching and Relief Inks. It reduces viscosity, and increases both flow and transparency. Ideal for Monoprinting and Carborundum printing when thinner inks are desired. Easy to clean with just soap and water. This is a 250ml tin of oil, made in the UK.