Masking Fluid: This medium causes specific areas of paper to be water-resistant for masking effects. Available in 75ml bottles.
Ox Gal: A pale, odorless liquid that increases the wetting and flow of watercolors. In 2.5 oz. bottles.
Iridescent Medium: Try this medium to give colors a pearlescent or glitter effect. Available in 75ml bottles.
Gum Arabic Solution: A pale solution that increases the gloss and transparency of watercolors. In 2.5 oz. bottles.
Granulation Medium: This medium gives colors a granular appearance and is useful in all watercolor techniques. Available in 75ml bottles.