Product Description Holbein’s Acryla line of gouache consists of ninety colors, including ten metallic and four luminous finishes, in a pure water soluble acrylic resin that dries to the smooth matte finish– the same as a gouache in gum Arabic. It is rated for light fastness, hue, value and chroma and is made from the purest pigments available. Not easily water soluble, it may be used as a successful ground which will not contaminate over-painted layers. It does not have as fragile a surface as traditional gouache in gum Arabic and is compatible with all water soluble media, regardless of origin. Color shown here is for reference only. Warning for CA Residents Prop 65: WARNING: Cancer – www.p65warnings.ca.gov