Tri-Art 1000ml Rheotech Paint, Phthalo Blue Non-toxic and virtually scent-free, making them the ideal choice for both the studio and classroom Made with 100-percent acrylic emulsion and archival pigments, Good to excellent light fastness and Chroma with all the colors Apply directly or mix with acrylic mediums to extend colors and create effects, Always test products and methods prior to applying to a final work