Tri-Art's Primary Tempera and Primary Liquid acrylics are made in 10 exciting colours that appeal to budding young artists and their audience. Both of these Primary lines are non toxic, have low odour and will not bottom settle in their jars. Real pigments are used to obtain vibrant colour chroma. Primary Tempera is in a liquid state and like all temperas, it will not be water resistant once dry. Primary acrylic is water resistant once dry. Both lines are available in 37 mL sets and in cylinders up to 4L pails.