FolkArt Acrylics have the versatility and blendability of oil paints plus increased open time to allow blending, shading and highlighting on any surface. Perfect for decorative painting, they have a velvety smooth texture and heavy pigment for maximum coverage. FolkArt glow in the dark colors are waterbased, but permanent. Use soap and cool water to clean brushes, supplies, and work area while paint is still wet.