System 3 acrylics are highly versatile, water-based acrylic colours. They offer an excellent painting experience at an economical price. Only high-quality pigments are used in the manufacture of the System 3 acrylic ranges, offering significantly greater loading than in other acrylic ranges available in this class. System 3's comprehensive range of colours offers excellent light-fastness*, permanence, durability and covering power. All colours can be thinned with water to pale washes, or used directly from the pot or tube; each form dries quickly to create an insoluble film. The quick drying properties of the range enable the artist to work quickly, superimposing or juxtaposing colours without unnecessary fuss. All System 3 Original and Heavy Body colours are fully intermixable and suitable for interior use. As they are not lightfast, fluorescent colours are not recommended for exterior use; all other colours are both lightfast and durable. *All but fluorescent colours; by their nature fluorescent pigments are not lightfast.