This permanent, fast-drying Titanium White oil paint is designed for use in underpainting or in wet-on-wet (alla prima) painting. Specifically formulated to create a lean, dry paint film, MG Underpainting White has enough tooth to readily accept glazes. Other uses include creating surface textures and impasto techniques. In normal applications, MG Underpainting White dries to the touch in 4 to 6 hours and may be painted over immediately. Need to control drying time? Mix MG Underpainting White with oil colors or mediums. To dilute, mix it with Pure Gum Spirits of Turpentine or Grumtine only. Petroleum solvents and paint thinners and odorless paint thinners are not compatible with this product. Mixtures of MG Underpainting White in excess of 1:1 will result in a brittle, dry paint film.