Schmincke : Horadam Watercolour Paint : ONETZ : 5ml : Ox Gall Wetting Agent

Schmincke Horadam ONETZ Ox Gall Wetting Agent is a thickened watercolour medium that can be used as a levelling and wetting agent for watercolour and gouache paints. Diluted with water, it improves flow and decreases the surface tension of liquid colours.ONETZ enhances wet-on-wet techniques while improving the performance and flow of watercolour paints on paper, particularly hard-sized papers. Made from natural ingredients, it should be used sparingly when mixing with water and watercolour paints. ONETZ can also be used to degrease undercoats left on the lacquered pallets of painting boxes.