System 3 acrylics, these colours have been successfully used to decorate paper, wood, canvases and uneven surfaces such as rough plaster or masonry. Tests on concrete slabs demonstrate the superior durability of System 3 over other acrylic colours in all weather conditions. System 3 has been used extensively for painting murals on school walls and, with the use of suitable primers, can be used even more widely on materials such as metals and plastics.
 
Tips to maximise the permanence of a painting and special effects using System 3 acrylic colours, please visit Daler-Rowney offical web :
http://www.daler-rowney.com/en/content/system-3-colour