Daler-Rowney System3 Screen Printing Drawing Fluid 75ml Daler-Rowney System3 screen printing medium is specially formulated for use with acrylic colours.  The two combine to produce an economical, low-odour, water-based screen printing ink that is regarded worldwide as the best of its kind.  System3 Screen Printing Medium slows down the screen drying of the acrylic colour, which reduces the risk of screen blocking and facilitates washing.  If the screens are kept wet, the System3 screen printing medium will wash out easily with soap and water.  Can be diluted with water.  Even after mixing with System3 screen printing medium, System3 acrylic colours retain a high colour density and a very high hiding power can be achieved on paper and cardboard. Brand: Daler-Rowney